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28
windows/index.md
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@ -12,8 +12,7 @@ author: brianlic-msft
This library provides the core content that IT pros need to evaluate, plan, deploy, secure and manage devices running Windows 10 or Windows 10 Mobile.
<center><iframe src="https://channel9.msdn.com/Events/Ignite/Australia-2017/WIN212/player" width="960" height="540" allowFullScreen frameBorder="0"></iframe></center>
<br/>
<table border="0" width="100%" align='center'>
</tr>
<tr style="text-align:center;">
@ -45,7 +44,7 @@ This library provides the core content that IT pros need to evaluate, plan, depl
<tr style="text-align:center;">
<td style="width:25%; border:0;">
<br/>
<a href="https://technet.microsoft.com/en-us/itpro/windows/deploy/index">
<a href="https://technet.microsoft.com/en-us/itpro/windows/keep-secure/index">
<img src="images/w10-secure.png" alt="Keep Windows 10 secure" title="Keep Windows 10 secure" />
</a>
<br/>Keep Secure
@ -67,28 +66,25 @@ This library provides the core content that IT pros need to evaluate, plan, depl
<td style="width:25%; border:0;">
<br/>
<a href="">
<img src="images/w10-evaluation.png" alt="Get your " title="What's new in Windows 10" />
<img src="images/w10-evaluation.png" alt="Try Windows 10" title="Try Windows 10" />
</a>
<br/>Try it
</td>
</tr>
</table>
</table>
<br/>
# Get to know Windows as a Service (WaaS)
<table border="0" width="100%" align='center'>
## Get to know Windows as a Service (WaaS)
<table border="0" width="100%" align='center'>
<tr>
<td valign=top width=60%>The Windows 10 operating system introduces a new way to build, deploy, and service Windows: Windows as a service. Microsoft has reimagined each part of the process, to simplify the lives of IT pros and maintain a consistent Windows 10 experience for its customers.
<td valign=top width:40%; border:0;>The Windows 10 operating system introduces a new way to build, deploy, and service Windows: Windows as a service. Microsoft has reimagined each part of the process, to simplify the lives of IT pros and maintain a consistent Windows 10 experience for its customers.
These improvements focus on maximizing customer involvement in Windows development, simplifying the deployment and servicing of Windows client computers, and leveling out the resources needed to deploy and maintain Windows over time.
* [Read more about Windows as a Service]()
* [Download the WaaS infographic]()
These improvements focus on maximizing customer involvement in Windows development, simplifying the deployment and servicing of Windows client computers, and leveling out the resources needed to deploy and maintain Windows over time.
- <a href='https://technet.microsoft.com/en-us/itpro/windows/manage/waas-overview'>Read more about Windows as a Service</a>
- <a href=''>Download the WaaS infographic</a>
</td>
<td width=40%><center><img style='border:thin silver solid' src="images/w10-WaaS-poster.png" alt="Get to know Windows as a Service (WaaS) " title="Get to know Windows as a Service (WaaS)" /></center></td>
<td valign=top width:60%; border:0;><center><img style='border:thin silver solid' src="images/w10-WaaS-poster.png" alt="Get to know Windows as a Service (WaaS) " title="Get to know Windows as a Service (WaaS)" /></center></td>
</tr>
<table>

10
windows/keep-secure/TOC.md
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@ -802,9 +802,12 @@
#### [Troubleshoot Windows Defender ATP](troubleshoot-windows-defender-advanced-threat-protection.md)
#### [Review events and errors on endpoints with Event Viewer](event-error-codes-windows-defender-advanced-threat-protection.md)
#### [Windows Defender Antivirus compatibility](defender-compatibility-windows-defender-advanced-threat-protection.md)
### [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)
#### [Windows Defender AV in the Windows Defender Security Center app](windows-defender-security-center-antivirus.md)
#### [Windows Defender Antivirus on Windows Server](windows-defender-antivirus-on-windows-server-2016.md)
#### [Windows Defender Antivirus and Advanced Threat Protection: Better together](windows-defender-antivirus-compatibility.md)
#### [Evaluate Windows Defender Antivirus protection](evaluate-windows-defender-antivirus.md)
#### [Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md)
##### [Deploy and enable Windows Defender Antivirus](deploy-windows-defender-antivirus.md)
@ -831,8 +834,11 @@
###### [Prevent users from seeing or interacting with the user interface](prevent-end-user-interaction-windows-defender-antivirus.md)
###### [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
#### [Customize, initiate, and review the results of scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
##### [Exclude files and processes from scans](configure-exclusions-windows-defender-antivirus.md)
##### [Configure email, removable storage, network, reparse point, and archive scanning](configure-advanced-scan-types-windows-defender-antivirus.md)
##### [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
###### [Configure and validate exclusions based on file name, extension, and folder location](configure-extension-file-exclusions-windows-defender-antivirus.md)
###### [Configure and validate exclusions for files opened by processes](configure-process-opened-file-exclusions-windows-defender-antivirus.md)
###### [Configure exclusions in Windows Defender AV on Windows Server 2016](configure-server-exclusions-windows-defender-antivirus.md)
##### [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
##### [Configure remediation for scans](configure-remediation-windows-defender-antivirus.md)
##### [Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md)
##### [Configure and run scans](run-scan-windows-defender-antivirus.md)

18
windows/keep-secure/configure-advanced-scan-types-windows-defender-antivirus.md
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@ -47,12 +47,12 @@ See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use
For using WMI classes, see [Windows Defender WMIv2 APIs](https://msdn.microsoft.com/en-us/library/dn439477(v=vs.85).aspx).
Description | GP location and setting | Default setting (if not configured) | PowerShell `Set-MpPreference` parameter or WMI property for `MSFT_MpPreference` class
Description | Location and setting | Default setting (if not configured) | PowerShell `Set-MpPreference` parameter or WMI property for `MSFT_MpPreference` class
---|---|---|---
See [Email scanning limitations](#ref1)) below | Scan > Turn on e-mail scanning | Disabled | `-DisableEmailScanning`
Scan [reparse points](https://msdn.microsoft.com/library/windows/desktop/aa365503.aspx) | Scan > Turn on reparse point scanning | Disabled | `-DisableRestorePoint`
Scan mapped network drives | Scan > Run full scan on mapped network drives | Disabled | `-DisableScanningMappedNetworkDrivesForFullScan`
Scan archive files (such as .zip or .rar files). The [extensions exclusion list](configure-extension-exclusions-windows-defender-antivirus.md) will take precendence over this setting. | Scan > Scan archive files | Enabled | `-DisableArchiveScanning`
Scan archive files (such as .zip or .rar files). The [extensions exclusion list](configure-extension-file-exclusions-windows-defender-antivirus.md) will take precendence over this setting. | Scan > Scan archive files | Enabled | `-DisableArchiveScanning`
Scan files on the network | Scan > Scan network files | Disabled | `-DisableScanningNetworkFiles`
Scan packed executables | Scan > Scan packed executables | Enabled | Not available
Scan removable drives during full scans only | Scan > Scan removable drives | Disabled | `-DisableRemovableDriveScanning`
@ -75,16 +75,16 @@ See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune: Scan
<a id="ref1"></a>
### Email scanning limitations
Enabling email scanning will cause Windows Defender AV to scan emails during on-demand and scheduled scans. Embedded objects within an email file (such as attachments and archived files) are also scanned. The following file format types can be scanned and remediated:
We recommend using [always-on real-time protection](configure-real-time-protection-windows-defender-antivirus.md) to protect against email-based malware.
Always-on protection scans emails as they arrive and as they are manipulated, just like normal files in the operating system. This provides the strongest form of protection and is the recommended method for scanning emails.
You can use this Group Policy to also enable scanning of older email files used by Outlook 2003 and older during on-demand and scheduled scans. Embedded objects within an email file (such as attachments and archived files) are also scanned. The following file format types can be scanned and remediated:
- DBX
- MBX
- MIME
>[!WARNING]
> Is this true - can it scan Outlook 2013/ 2016?
> "Windows Defender scans Microsoft Office Outlook 2003 and older email files."
You can configure Windows Defender to scan PST files used by Outlook 2003 or older versions (where the archive type is set to non-uni-code), but Windows Defender cannot remediate threats detected inside PST files. We recommend using [always-on real-time protection](configure-real-time-protection-windows-defender-antivirus.md) to protect against email-based malware.
PST files used by Outlook 2003 or older (where the archive type is set to non-uni-code) can also be scanned, but Windows Defender cannot remediate threats detected inside PST files. This is another reason why we recommend using [always-on real-time protection](configure-real-time-protection-windows-defender-antivirus.md) to protect against email-based malware.
If Windows Defender detects a threat inside an email, it will show you the following information to assist you in identifying the compromised email, so you can remediate the threat:
- Email subject
@ -97,7 +97,7 @@ If Windows Defender detects a threat inside an email, it will show you the follo
## Related topics
- [Customize, initiate, and review the results of Windows Defender AV scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
- [Customize, initiate, and review the results of Windows Defender AV scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
- [Configure and run on-demand Windows Defender AV scans](run-scan-windows-defender-antivirus.md)
- [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

4
windows/keep-secure/configure-block-at-first-sight-windows-defender-antivirus.md
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@ -135,7 +135,7 @@ You may choose to disable the Block at First Sight feature if you want to retain
5. Expand the tree through **Windows components > Windows Defender Antivirus > MAPS**.
1. Double-click the **Configure the ‘Block at First Sight’ feature** setting and set the option to **Disabled**.
1. Double-click the **Configure the 'Block at First Sight' feature** setting and set the option to **Disabled**.
> [!NOTE]
> Disabling the Block at First Sight feature will not disable or alter the pre-requisite group policies.
@ -143,7 +143,7 @@ You may choose to disable the Block at First Sight feature if you want to retain
## Related topics
- [Windows Defender in Windows 10](windows-defender-in-windows-10.md)
- [Windows Defender in Windows 10](windows-defender-antivirus-in-windows-10.md)
- [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)

4
windows/keep-secure/configure-cloud-block-timeout-period-windows-defender-antivirus.md
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@ -57,14 +57,14 @@ You can use Group Policy to specify an extended timeout for cloud checks.
4. Expand the tree to **Windows components > Windows Defender Antivirus > MpEngine**
5. Double-click the **Configure extended cloud check** setting and ensure the option is enabled. Specify the additional amount of time to prevent the file from running while waiting for a cloud determination. You can specify the additional time, in seconds, from 1 second to 50 seconds. This time will be added to the default 10 seconds.
5. Double-click the **Configure extended cloud check** setting and ensure the option is enabled. Specify the additional amount of time to prevent the file from running while waiting for a cloud determination. You can specify the additional time, in seconds, from 1 second to 50 seconds. This time will be added to the default 10 seconds.
6. Click **OK**.
## Related topics
- [Windows Defender in Windows 10](windows-defender-in-windows-10.md)
- [Windows Defender in Windows 10](windows-defender-antivirus-in-windows-10.md)
- [Utilize Microsoft cloud-delivered protection in Windows Defender Antivirus](utilize-microsoft-cloud-protection-windows-defender-antivirus.md)
- [Configure the Block at First Sight feature](configure-block-at-first-sight-windows-defender-antivirus.md)
- [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)

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windows/keep-secure/configure-exclusions-windows-defender-antivirus.md
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@ -33,342 +33,20 @@ author: iaanw
- Microsoft Intune
- Windows Defender Security Center
You can exclude certain files, folders, processes, and process-modified files from being scanned by Windows Defender AV. The exclusions apply to [scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md), [on-demand scans](run-scan-windows-defender-antivirus.md), and [always-on real-time protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md).
You can exclude certain files, folders, processes, and process-modified files from being scanned by Windows Defender Antivirus.
Changes made via Group Policy to the exclusion lists **will show** in the lists in the [Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions). However, changes made in the Windows Defender Security Center app **will not show** in the Group Policy lists.
The exclusions apply to [scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md), [on-demand scans](run-scan-windows-defender-antivirus.md), and [always-on real-time protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md).
You can add, remove, and review the lists for exclusions in [Group Policy](#gp), [System Center Configuration Manager, Microsoft Intune, and with the Windows Defender Security Center app](#man-tools).
Exclusions can be useful to avoid incorrect detections on files or software that are unique or customized to your organization.
You can also [use PowerShell cmdlets and WMI to configure the exclusion lists](#ps), although you will need to use several different cmdlets.
>[!WARNING]
>Defining exclusions lowers the protection offered by Windows Defender AV. You should always evaluate the risks that are associated with implementing exclusions, and you should only exclude files that you are confident are not malicious.
By default, local changes made to the lists (by users with administrator privileges) will be merged with the lists as defined (and deployed) by Group Policy, Configuration Manager, Intune, PowerShell, or WMI. The Group Policy lists will take precedence in the case of conflicts. You can [configure how locally and globally defined exclusions lists are merged](configure-local-policy-overrides-windows-defender-antivirus.md#merge-lists) to disable this setting.
## In this section
PowerShell can be used to [validate that your exclusion lists are working as expected](#validate).
Topic | Description
---|---
[Configure and validate exclusions based on file name, extension, and folder location](configure-extension-file-exclusions-windows-defender-antivirus.md) | Exclude files from Windows Defender AV scans based on their file extension, file name, or location
[Configure and validate exclusions for files opened by processes](configure-process-opened-file-exclusions-windows-defender-antivirus.md) | You can exclude files from scans that have been opened by a specific process
[Configure exclusions in Windows Defender AV on Windows Servery](configure-server-exclusions-windows-defender-antivirus.md) | Windows Server 2016 includes automatic exclusions, based on the defined Server Role. You can also add custom exclusions
## Types of exclusions
There are three exclusion lists that you can configure:
- Extension exclusions list
- File and folder exclusions list
- Files opened by defined processes list
The following table shows some of the typical scenarios and which list would need to be configured.
Exclusion | Examples | Exclusion list
---|---|---
Any file with a specific extension | All files with the .test extension, anywhere on the machine | Extension exclusions
Any file under a specific folder | All files under the c:\test\sample folder | File and folder exclusions
Any file with a specific file name | The file "sample.test", anywhere on the machine | File and folder exclusions
A specific file in a specific folder | The file c:\sample\sample.test only | File and folder exclusions
A specific process | The executable file c:\test\process.exe | File and folder exclusions list
Any file opened by a specific process | Any file opened by the process c:\test\open.exe, even if the file that is opened is located in d:\folder43 | Process-opened exclusions
This means the exclusion lists have the following characteristics:
- If you exclude a file, the exclusion will apply to all versions of that file, regardless of where the file is located.
- Folder exclusions will apply to all files and folders under that folder.
- File extensions will apply to any file name with the defined extension, regardless of where the file is located.
- Any file opened by the defined process will be excluded, regardless of where the file is located. The process itself will **not** be excluded.
<a id="gp"></a>
## Use Group Policy to configure exclusion lists
**Use Group Policy to configure file extension exclusions:**
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
4. Click **Policies** then **Administrative templates**.
5. Expand the tree to **Windows components > Windows Defender Antivirus > Exclusions**.
6. Double-click the **Extension Exclusions** setting and add the exclusions:
1. Set the option to **Enabled**.
2. Under the **Options** section, click **Show...**
3. Enter each file extension on its own line under the **Value name** column. Enter **0** in the **Value** column for all processes.
7. Click **OK**.
![The Group Policy setting for file exclusions](images/defender/wdav-extension-exclusions.png)
<a id="exclude-paths-files"></a>
**Use Group Policy to exclude specified files or folders from scans:**
>[!NOTE]
>The exclusion will apply to any file with the defined file name - regardless of its location. If a folder is defined in the exclusion, then all files and subdirectories under that folder will be excluded.
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
4. Click **Policies** then **Administrative templates**.
5. Expand the tree to **Windows components > Windows Defender Antivirus > Exclusions**.
6. Double-click the **Path Exclusions** setting and add the exclusions:
1. Set the option to **Enabled**.
2. Under the **Options** section, click **Show...**
3. Enter each path or file on its own line under the **Value name** column. If you are entering a file, ensure you enter a fully qualified path to the file, including the drive letter, folder path, filename, and extension. Enter **0** in the **Value** column for all processes.
7. Click **OK**.
![The Group Policy setting for folder exclusions](images/defender/wdav-path-exclusions.png)
**Use Group Policy to exclude files that have been used or modified by specified processes from scans:**
>[!NOTE]
>You can exclude files that are opened by specified processes from being scanned. The specified process won't be excluded - but any files that are opened by that process (regardless of where they are or what they are named) will be excluded. If you need to exclude the process itself, [exclude it as a file](#exclude-paths-files).
>You can only exclude files modified by processes if the process is an executable.
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
4. Click **Policies** then **Administrative templates**.
5. Expand the tree to **Windows components > Windows Defender Antivirus > Exclusions**.
6. Double-click the **Process Exclusions** setting and add the exclusions:
1. Set the option to **Enabled**.
2. Under the **Options** section, click **Show...**
3. Enter each process on its own line under the **Value name** column. Ensure you enter a fully qualified path to the process, including the drive letter, folder path, filename, and extension. The process must be an executable. Enter **0** in the **Value** column for all processes.
7. Click **OK**.
![The Group Policy setting for specifying process exclusions](images/defender/wdav-process-exclusions.png)
<a id="ps"></a>
## Use PowerShell cmdlets and WMI to configure exclusion lists
Excluding and reviewing file extensions, paths and files (including processes), and files opened by processes with PowerShell requires using a combination of four cmdlets and the appropriate exclusion list parameter. The cmdlets are all in the [Defender module](https://technet.microsoft.com/en-us/itpro/powershell/windows/defender/defender).
There are three exclusion lists:
- ExclusionExtension
- ExclusionPath
- ExclusionProcess
You can modify each of the lists with the following cmdlets:
- Set-MpPreference to create or overwrite the defined list
- Add-MpPreference to add new items to the defined list
- Remove-MpPreference to remove or delete items from the defined list
- Get-MpPreference to review the items in the list, either all at once with all other Windows Defender AV settings, or individually for each of the lists
>[!IMPORTANT]
>If you have created a list, either with `Set-MpPreference` or `Add-MpPreference`, using the `Set-MpPreference` cmdlet again will overwrite the existing list.
The following matrix provides sample commands based on what you want to exclude, and whether you want to create a list, add to the list, or remove items from the list.
<table>
<tr><th>Configuration action</th><th>Type of exclusion</th><th>PowerShell command</th></tr>
<tr><td rowspan="3">Create or overwrite a list</td><td>File extensions that should be excluded from scans</td><td>
Set-MpPreference -ExclusionExtension ".extension1, .extension2, .extension3"</td></tr>
<tr><td>Files (including processes) and paths that should be excluded from scans</td><td>
Set-MpPreference -ExclusionPath "c:\example, d:\test\process.exe, c:\test\file.bat"</td></tr>
<tr><td>Files opened by the specified processes (executables)</td><td>
Set-MpPreference -ExclusionProcess "c:\example\test.exe"</td></tr>
<tr><td rowspan="3">Add to a list</td><td>File extensions that should be excluded from scans</td><td>
Add-MpPreference -ExclusionExtension ".extension4, .extension5"</td></tr>
<tr><td>Files (including processes) and paths that should be excluded from scans</td><td>
Add-MpPreference -ExclusionPath "d:\test, d:\example\file.png"</td></tr>
<tr><td>Files opened by specified processes (executables)</td><td>
Add-MpPreference -ExclusionProcess "f:\test\sample.exe"</td></tr>
<tr><td rowspan="3">Remove items from a list</td><td>File extensions that should be excluded from scans</td><td>
Remove-MpPreference -ExclusionExtension ".extension1, .extension4, .extension5"</td></tr>
<tr><td>Files (including processes) and paths that should be excluded from scans</td><td>
Remove-MpPreference -ExclusionPath "c:\example, d:\example\file.png"</td></tr>
<tr><td>Files opened by specified processes (executables)</td><td>
Remove-MpPreference -ExclusionProcess "c:\example\test.exe"</td></tr>
</table>
### Review the exclusion lists with PowerShell
You can retrieve the items in any of the lists in two ways:
- Retrieve the status of all Windows Defender AV preferences. Each of the three lists will be displayed on separate lines, but the items within the list will be combined into the same line.
- Write the status of all preferences to a variable, and only call the specific list you are interested in. Each use of `Add-MpPreference` is written to a new line.
In both instances the items are sorted alphabetically.
The following sequence of code examples helps to show how this works.
1. Create an example list of extensions that should be excluded from scans:
```PowerShell
PS C:\> Set-MpPreference -ExclusionExtension ".test1, .test2"
```
2. Add some additional extensions:
```PowerShell
PS C:\> Add-MpPreference -ExclusionExtension ".test40, test50"
```
3. Add another set of extensions:
```PowerShell
PS C:\> Add-MpPreference -ExclusionExtension ".secondadd1, .secondadd2"
```
4. Review the list as a combined list:
```PowerShell
PS C:\> Get-MpPreference
```
![PowerShell output for Get-MpPreference showing the exclusion list alongside other preferences](images/defender/wdav-powershell-get-exclusions-all.png)
5. Use a variable to store and retrieve only the exclusions list:
```PowerShell
PS C:\> $WDAVprefs = Get-MpPreference
PS C:\> $WDAVprefs.ExclusionExtension
```
![PowerShell output showing only the entries in the exclusion list](images/defender/wdav-powershell-get-exclusions-variable.png)
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
### Use Windows Management Instruction (WMI) to configure file extension exclusions
Use the [ **Set**, **Add**, and **Remove** methods of the **MSFT_MpPreference**](https://msdn.microsoft.com/en-us/library/dn455323(v=vs.85).aspx) class for the following properties:
```WMI
ExclusionExtension
ExclusionPath
ExclusionProcess
```
The use of **Set**, **Add**, and **Remove** are analogous to their counterparts in PowerShell: `Set-MpPreference`, `Add-MpPreference`, and `Remove-MpPreference`.
See the following for more information and allowed parameters:
- [Windows Defender WMIv2 APIs](https://msdn.microsoft.com/en-us/library/dn439477(v=vs.85).aspx)
<a id="man-tools"></a>
## Use System Center Configuration Manager, Intune, or the Windows Defender Security Center app to configure exclusion lists
**Use Configuration Manager to configure file extension exclusions:**
See [How to create and deploy antimalware policies: Exclusion settings](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#exclusion-settings) for details on configuring System Center Configuration Manager (current branch).
**Use Microsoft Intune to configure file extension exclusions:**
See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune](https://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune) and [Windows Defender policy settings in Windows 10](https://docs.microsoft.com/en-us/intune/deploy-use/windows-10-policy-settings-in-microsoft-intune#windows-defender-1) for more details.
**Use the Windows Defender Security app to add exclusions to Windows Defender AV:**
See [Add exclusions in the Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions) for instructions.
## Configure auto exclusions lists for Windows Server deployments
If you are using Windows Defender AV to protect Windows Server endpoints or machines, you are [automatically enrolled in certain exclusions](https://technet.microsoft.com/en-us/windows-server-docs/security/windows-defender/automatic-exclusions-for-windows-defender), as defined by your specified Windows Server Role.
These exclusions will not appear in the standard exclusion lists shown in the [Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions).
You can still add or remove custom exclusions (in addition to the Server Role-defined auto exclusions) as described in the other sections in this topic.
You can also disable the auto-exclusions lists with Group Policy, PowerShell cmdlets, and WMI.
**Use Group Policy to disable the auto-exclusions list on Windows Server 2016:**
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
4. Click **Policies** then **Administrative templates**.
5. Expand the tree to **Windows components > Windows Defender Antivirus > Exclusions**.
6. Double-click the **Turn off Auto Exclusions** setting and set the option to **Enabled**. Click **OK**.
**Use PowerShell cmdlets to disable the auto-exclusions list on Windows Server 2016:**
Use the following cmdlets:
```PowerShell
Set-MpPreference -DisableAutoExclusions
```
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
**Use Windows Management Instruction (WMI) to disable the auto-exclusions list on Windows Server 2016:**
Use the [**Set** method of the **MSFT_MpPreference**](https://msdn.microsoft.com/en-us/library/dn455323(v=vs.85).aspx) class for the following properties:
```WMI
DisableAutoExclusions
```
See the following for more information and allowed parameters:
- [Windows Defender WMIv2 APIs](https://msdn.microsoft.com/en-us/library/dn439477(v=vs.85).aspx)
## Use wildcards in exclusion lists
You can use the asterisk **\***, question mark **?**, or environment variables (such as %APPDATA%) as wildcards when defining items in the exclusion lists.
You cannot use a wildcard in place of a drive letter.
The following table describes how the wildcards can be used and provides some examples.
Wildcard | Use | Example use | Example matches
---|---|---|---
**\*** (asterisk) | Replaces any number of chararacters | <ul><li>C:\MyData\my\*.zip</li><li>C:\somepath\\\*\Data</li><li>.t\*t</li></ul> | <ul><li>C:\MyData\my-archived-files-43.zip</li><li>C:\somepath\folder1\folder2\Data</li><li>.test</li></ul>
**?** (question mark) | Replaces a single character | <ul><li>C:\MyData\my\*.zip</li><li>C:\somepath\\\*\Data</li><li>.t\*t</li></ul> | <ul><li>C:\MyData\my1.zip</li><li>C:\somepath\P\Data</li><li>.txt </li></ul>
Environment variables | The defined variable will be populated as a path when the exclusion is evaluated | <ul><li>%ALLUSERSPROFILE%\CustomLogFiles</li><li>%APPDATA%\Data\file.png</li></ul> | <ul><li>C:\ProgramData\CustomLogFiles\Folder1\file1.txt</li><li>C:\Users\username\AppData\Roaming\Data\file.png</li></ul>
<a id="validate"></a>
## Validate exclusions lists with the EICAR test file
You can validate that your exclusion lists are working by using PowerShell with either the `Invoke-WebRequest` cmdlet or the .NET WebClient class to download a test file.
In the following PowerShell snippet, replace *test.txt* with a file that conforms to your exclusion rules. For example, if you have excluded the .testing extension, replace *test.txt* with *test.testing*. If you are testing a path, ensure you run the cmdlet within that path.
```PowerShell
Invoke-WebRequest "http://www.eicar.org/download/eicar.com.txt" -OutFile "test.txt"
```
If Windows Defender AV reports malware, then the rule is not working. If there is no report of malware, and the downloaded file exists, then the exclusion is working. You can open the file to confirm the contents are the same as what is described on the [EICAR testfile website](http://www.eicar.org/86-0-Intended-use.html).
You can also use the following PowerShell code, which calls the .NET WebClient class to download the testfile - as with the `Invoke-WebRequest` cmdlet, replace *c:\test.txt* with a file that conforms to the rule you are validating:
```PowerShell
$client = new-object System.Net.WebClient
$client.DownloadFile("http://www.eicar.org/download/eicar.com.txt","c:\test.txt")
```
## Related topics
- [Customize, initiate, and review the results of Windows Defender AV scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

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---
title: Configure and validate exclusions based on extension, name, or location
description: Exclude files from Windows Defender AV scans based on their file extension, file name, or location.
keywords: exclusions, files, extension, file type, folder name, file name, scans
search.product: eADQiWindows 10XVcnh
ms.pagetype: security
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
ms.pagetype: security
localizationpriority: medium
author: iaanw
---
# Configure and validate exclusions based on file name, extension, and folder location
**Applies to:**
- Windows 10
**Audience**
- Enterprise security administrators
**Manageability available with**
- Group Policy
- PowerShell
- Windows Management Instrumentation (WMI)
- System Center Configuration Manager
- Microsoft Intune
- Windows Defender Security Center
You can exclude certain files from being scanned by Windows Defender AV by modifying exclusion lists.
This topic describes how to configure exclusion lists for the following:
Exclusion | Examples | Exclusion list
---|---|---
Any file with a specific extension | All files with the .test extension, anywhere on the machine | Extension exclusions
Any file under a specific folder | All files under the c:\test\sample folder | File and folder exclusions
Any file with a specific file name | The file "sample.test", anywhere on the machine | File and folder exclusions
A specific file in a specific folder | The file c:\sample\sample.test only | File and folder exclusions
A specific process | The executable file c:\test\process.exe | File and folder exclusions list
This means the exclusion lists have the following characteristics:
- If you exclude a file, the exclusion will apply to all versions of that file, regardless of where the file is located.
- Folder exclusions will apply to all files and folders under that folder.
- File extensions will apply to any file name with the defined extension, regardless of where the file is located.
To exclude files opened by a specific process, see the [Configure and validate exclusions for files opened by processes](configure-process-opened-file-exclusions-windows-defender-antivirus.md) topic.
The exclusions apply to [scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md), [on-demand scans](run-scan-windows-defender-antivirus.md), and [always-on real-time protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md).
Changes made via Group Policy to the exclusion lists **will show** in the lists in the [Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions). However, changes made in the Windows Defender Security Center app **will not show** in the Group Policy lists.
You can add, remove, and review the lists for exclusions in [Group Policy](#gp), [System Center Configuration Manager, Microsoft Intune, and with the Windows Defender Security Center app](#man-tools), and you can [use wildcards](#wildcards) to further customize the lists.
You can also [use PowerShell cmdlets and WMI to configure the exclusion lists](#ps), including [reviewing](#review) and [validating](#validate) your lists.
By default, local changes made to the lists (by users with administrator privileges) will be merged with the lists as defined (and deployed) by Group Policy, Configuration Manager, Intune, PowerShell, or WMI. The Group Policy lists will take precedence in the case of conflicts. You can [configure how locally and globally defined exclusions lists are merged](configure-local-policy-overrides-windows-defender-antivirus.md#merge-lists) to disable this setting.
## Configure the list of exclusions based on file or folder name or file extension
<a id="gp"></a>
**Use Group Policy to configure file name, folder, or file extension exclusions:**
>[!NOTE]
>The exclusion will apply to any file with the defined file name - regardless of its location. If a folder is defined in the exclusion, then all files and subdirectories under that folder will be excluded.
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
4. Click **Policies** then **Administrative templates**.
5. Expand the tree to **Windows components > Windows Defender Antivirus > Exclusions**.
6. Double-click the **Path Exclusions** setting and add the exclusions:
1. Set the option to **Enabled**.
2. Under the **Options** section, click **Show...**
3. Enter each path or file on its own line under the **Value name** column. If you are entering a file, ensure you enter a fully qualified path to the file, including the drive letter, folder path, filename, and extension. Enter **0** in the **Value** column for all processes.
7. Click **OK**.
![The Group Policy setting for file and folder exclusions](images/defender/wdav-extension-exclusions.png)
8. Double-click the **Extension Exclusions** setting and add the exclusions:
1. Set the option to **Enabled**.
2. Under the **Options** section, click **Show...**
3. Enter each file extension on its own line under the **Value name** column. Enter **0** in the **Value** column for all processes.
9. Click **OK**.
![The Group Policy setting for extension exclusions](images/defender/wdav-path-exclusions.png)
<a id="ps"></a>
**Use PowerShell cmdlets to configure file name, folder, or file extension exclusions:**
Using PowerShell to add or remove exclusions for files based on the extension, location, or file name requires using a combination of three cmdlets and the appropriate exclusion list parameter. The cmdlets are all in the [Defender module](https://technet.microsoft.com/en-us/itpro/powershell/windows/defender/defender).
The format for the cmdlets is:
```PowerShell
<cmdlet> -<exclusion list> "<item1>, <item2>, <item3>"
```
The following are allowed as the \<cmdlet>:
Configuration action | PowerShell cmdlet
---|---
Create or overwrite the list | `Set-MpPreference`
Add to the list | `Add-MpPreference`
Remove items from the list | `Remove-MpPreference`
The following are allowed as the \<exclusion list>:
Exclusion type | PowerShell parameter
---|---
All files with a specified file extension | `-ExclusionExtension`
All files under a folder (including files in subdirectories) | `-ExclusionPath`
>[!IMPORTANT]
>If you have created a list, either with `Set-MpPreference` or `Add-MpPreference`, using the `Set-MpPreference` cmdlet again will overwrite the existing list.
For example, the following code snippet would cause Windows Defender AV scans to exclude any file with the **.test**, **.sample**, or **.ignore** file extension:
```PowerShell
Add-MpPreference -ExclusionExtension ".test, .sample, .ignore"
```
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
**Use Windows Management Instruction (WMI) to configure file name, folder, or file extension exclusions:**
Use the [ **Set**, **Add**, and **Remove** methods of the **MSFT_MpPreference**](https://msdn.microsoft.com/en-us/library/dn455323(v=vs.85).aspx) class for the following properties:
```WMI
ExclusionExtension
ExclusionPath
```
The use of **Set**, **Add**, and **Remove** is analogous to their counterparts in PowerShell: `Set-MpPreference`, `Add-MpPreference`, and `Remove-MpPreference`.
See the following for more information and allowed parameters:
- [Windows Defender WMIv2 APIs](https://msdn.microsoft.com/en-us/library/dn439477(v=vs.85).aspx)
<a id="man-tools"></a>
**Use Configuration Manager to configure file name, folder, or file extension exclusions:**
See [How to create and deploy antimalware policies: Exclusion settings](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#exclusion-settings) for details on configuring System Center Configuration Manager (current branch).
**Use Microsoft Intune to configure file name, folder, or file extension exclusions:**
See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune](https://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune) and [Windows Defender policy settings in Windows 10](https://docs.microsoft.com/en-us/intune/deploy-use/windows-10-policy-settings-in-microsoft-intune#windows-defender-1) for more details.
**Use the Windows Defender Security Center app to configure file name, folder, or file extension exclusions:**
See [Add exclusions in the Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions) for instructions.
<a id="wildcards"></a>
## Use wildcards in the file name and folder path or extension exclusion lists
You can use the asterisk **\***, question mark **?**, or environment variables (such as %APPDATA%) as wildcards when defining items in the file name or folder path exclusion list.
You cannot use a wildcard in place of a drive letter.
The following table describes how the wildcards can be used and provides some examples.
Wildcard | Use | Example use | Example matches
---|---|---|---
**\*** (asterisk) | Replaces any number of chararacters | <ul><li>C:\MyData\my\*.zip</li><li>C:\somepath\\\*\Data</li></ul> | <ul><li>C:\MyData\my-archived-files-43.zip</li><li>Any file in C:\somepath\folder1\folder2\Data</li></ul>
**?** (question mark) | Replaces a single character | <ul><li>C:\MyData\my\?.zip</li><li>C:\somepath\\\?\Data</li></ul> | <ul><li>C:\MyData\my1.zip</li><li>Any file in C:\somepath\P\Data</li></ul>
Environment variables | The defined variable will be populated as a path when the exclusion is evaluated | <ul><li>%ALLUSERSPROFILE%\CustomLogFiles</li><li>%APPDATA%\Data\file.png</li></ul> | <ul><li>C:\ProgramData\CustomLogFiles\Folder1\file1.txt</li><li>C:\Users\username\AppData\Roaming\Data\file.png</li></ul>
<a id="review"></a>
## Review the list of exclusions
You can retrieve the items in the exclusion list with PowerShell, [System Center Configuration Manager](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#exclusion-settings), [Intune](https://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune), or the [Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions).
If you use PowerShell, you can retrieve the list in two ways:
- Retrieve the status of all Windows Defender AV preferences. Each of the lists will be displayed on separate lines, but the items within each list will be combined into the same line.
- Write the status of all preferences to a variable, and use that variable to only call the specific list you are interested in. Each use of `Add-MpPreference` is written to a new line.
**Review the list of exclusions alongside all other Windows Defender AV preferences:**
Use the following cmdlet:
```PowerShell
Get-MpPreference
```
In the following example, the items contained in the `ExclusionExtension` list are highlighted:
![PowerShell output for Get-MpPreference showing the exclusion list alongside other preferences](images/defender/wdav-powershell-get-exclusions-all.png)
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
**Retrieve a specific exclusions list:**
Use the following code snippet (enter each line as a separate command); replace **WDAVprefs** with whatever label you want to name the variable:
```PowerShell
$WDAVprefs = Get-MpPreference
$WDAVprefs.ExclusionExtension
$WDAVprefs.ExclusionPath
```
In the following example, the list is split into new lines for each use of the `Add-MpPreference` cmdlet:
![PowerShell output showing only the entries in the exclusion list](images/defender/wdav-powershell-get-exclusions-variable.png)
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
<a id="validate"></a>
## Validate exclusions lists with the EICAR test file
You can validate that your exclusion lists are working by using PowerShell with either the `Invoke-WebRequest` cmdlet or the .NET WebClient class to download a test file.
In the following PowerShell snippet, replace *test.txt* with a file that conforms to your exclusion rules. For example, if you have excluded the .testing extension, replace *test.txt* with *test.testing*. If you are testing a path, ensure you run the cmdlet within that path.
```PowerShell
Invoke-WebRequest "http://www.eicar.org/download/eicar.com.txt" -OutFile "test.txt"
```
If Windows Defender AV reports malware, then the rule is not working. If there is no report of malware, and the downloaded file exists, then the exclusion is working. You can open the file to confirm the contents are the same as what is described on the [EICAR testfile website](http://www.eicar.org/86-0-Intended-use.html).
You can also use the following PowerShell code, which calls the .NET WebClient class to download the testfile - as with the `Invoke-WebRequest` cmdlet; replace *c:\test.txt* with a file that conforms to the rule you are validating:
```PowerShell
$client = new-object System.Net.WebClient
$client.DownloadFile("http://www.eicar.org/download/eicar.com.txt","c:\test.txt")
```
## Related topics
- [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
- [Configure and validate exclusions for files opened by processes](configure-process-opened-file-exclusions-windows-defender-antivirus.md)
- [Configure exclusions in Windows Defender AV on Windows Servery](configure-server-exclusions-windows-defender-antivirus.md)
- [Customize, initiate, and review the results of Windows Defender AV scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

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@ -53,21 +53,21 @@ To configure these settings:
7. Deploy the Group Policy Object as usual.
Location | Setting | Impact if **Enabled** | Configuration topic
Location | Setting | Configuration topic
---|---|---|---
MAPS | Configure local setting override for reporting to Microsoft MAPS | User can disable cloud protection | [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)
Quarantine | Configure local setting override for the removal of items from Quarantine folder | User can change the number of days threats are kept in the quarantine folder before being removed |[Configure remediation for scans](configure-remediation-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for monitoring file and program activity on your computer | User can disable real-time protection | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for monitoring for incoming and outgoing file activity | User can change direction for file activity monitoring | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for scanning all downloaded files and attachments | Allow user to disable scans of downloaded files and attachments | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for turn on behavior monitoring | User | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Configure local setting override to turn on real-time protection | xxx | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Remediation | Configure local setting override for the time of day to run a scheduled full scan to complete remediation | xxx | [Configure remediation for scans](configure-remediation-windows-defender-antivirus.md)
Scan | Configure local setting override for maximum percentage of CPU utilization | xxx | [Configure and run scans](run-scan-windows-defender-antivirus.md)
Scan | Configure local setting override for schedule scan day | xxx | [Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Configure local setting override for scheduled quick scan time | xxx | [Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Configure local setting override for scheduled scan time | xxx | [Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Configure local setting override for the scan type to use for a scheduled scan | xxx | [Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md)
MAPS | Configure local setting override for reporting to Microsoft MAPS | [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)
Quarantine | Configure local setting override for the removal of items from Quarantine folder | [Configure remediation for scans](configure-remediation-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for monitoring file and program activity on your computer | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for monitoring for incoming and outgoing file activity | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for scanning all downloaded files and attachments | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for turn on behavior monitoring | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Configure local setting override to turn on real-time protection | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Remediation | Configure local setting override for the time of day to run a scheduled full scan to complete remediation | [Configure remediation for scans](configure-remediation-windows-defender-antivirus.md)
Scan | Configure local setting override for maximum percentage of CPU utilization | [Configure and run scans](run-scan-windows-defender-antivirus.md)
Scan | Configure local setting override for schedule scan day | [Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Configure local setting override for scheduled quick scan time | [Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Configure local setting override for scheduled scan time | [Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Configure local setting override for the scan type to use for a scheduled scan | [Configure scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md)

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@ -191,9 +191,7 @@ The Windows event log will also show [Windows Defender client event ID 2050](tro
## Related topics
- [Windows Defender Antivirus in Windows 10](windows-defender-in-windows-10.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)
- [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)
- [Run a Windows Defender scan from the command line](command-line-arguments-windows-defender-antivirus.md) and [Command line arguments](command-line-arguments-windows-defender-antivirus.md)
- [Important changes to Microsoft Active Protection Services endpoint](https://blogs.technet.microsoft.com/enterprisemobility/2016/05/31/important-changes-to-microsoft-active-protection-service-maps-endpoint/)

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---
title: Configure and validate exclusions for files opened by specific processes
description: You can exclude files from scans if they have been opened by a specific process.
keywords: process, exclusion, files, scans
search.product: eADQiWindows 10XVcnh
ms.pagetype: security
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
ms.pagetype: security
localizationpriority: medium
author: iaanw
---
# Configure and validate exclusions for files opened by processes
**Applies to:**
- Windows 10
**Audience**
- Enterprise security administrators
**Manageability available with**
- Group Policy
- PowerShell
- Windows Management Instrumentation (WMI)
- System Center Configuration Manager
- Microsoft Intune
- Windows Defender Security Center
You can exclude files that have been opened by specific processes from being scanned by Windows Defender AV.
For example, you may need to exclude any file that is opened by the process *c:\internal\test.exe*.
You achieve this by adding the location and name of the process to the process exclusion list. When you add a process to the process exclusion list, Windows Defender AV will not scan files opened by that process, no matter where the files are located. The process itself, however, will be scanned unless it has also been added to the [file exclusion list](configure-extension-file-exclusions-windows-defender-antivirus.md).
The exclusions apply to [scheduled scans](scheduled-catch-up-scans-windows-defender-antivirus.md), [on-demand scans](run-scan-windows-defender-antivirus.md), and [always-on real-time protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md).
Changes made via Group Policy to the exclusion lists **will show** in the lists in the [Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions). However, changes made in the Windows Defender Security Center app **will not show** in the Group Policy lists.
You can add, remove, and review the lists for exclusions in [Group Policy](#gp), [System Center Configuration Manager, Microsoft Intune, and with the Windows Defender Security Center app](#man-tools), and you can [use wildcards](#wildcards) to further customize the lists.
You can also [use PowerShell cmdlets and WMI to configure the exclusion lists](#ps), including [reviewing](#review) your lists.
By default, local changes made to the lists (by users with administrator privileges) will be merged with the lists as defined (and deployed) by Group Policy, Configuration Manager, Intune, PowerShell, or WMI. The Group Policy lists will take precedence in the case of conflicts. You can [configure how locally and globally defined exclusions lists are merged](configure-local-policy-overrides-windows-defender-antivirus.md#merge-lists) to disable this setting.
## Configure the list of exclusions for files opened by specified processes
<a id="gp"></a>
**Use Group Policy to exclude files that have been used or modified by specified processes from scans:**
>[!NOTE]
>You can exclude files that are opened by specified processes from being scanned. The specified process won't be excluded - but any files that are opened by that process (regardless of where they are or what they are named) will be excluded. If you need to exclude the process itself, [exclude it as a file](#exclude-paths-files).
>You can only exclude files modified by processes if the process is an executable.
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
4. Click **Policies** then **Administrative templates**.
5. Expand the tree to **Windows components > Windows Defender Antivirus > Exclusions**.
6. Double-click the **Process Exclusions** setting and add the exclusions:
1. Set the option to **Enabled**.
2. Under the **Options** section, click **Show...**
3. Enter each process on its own line under the **Value name** column. Ensure you enter a fully qualified path to the process, including the drive letter, folder path, filename, and extension. The process must be an executable. Enter **0** in the **Value** column for all processes.
7. Click **OK**.
![The Group Policy setting for specifying process exclusions](images/defender/wdav-process-exclusions.png)
<a id="ps"></a>
**Use PowerShell cmdlets to configure file name, folder, or file extension exclusions:**
Using PowerShell to add or remove exclusions for files based on the extension, location, or file name requires using a combination of three cmdlets with the `-ExclusionProcess' parameter. The cmdlets are all in the [Defender module](https://technet.microsoft.com/en-us/itpro/powershell/windows/defender/defender).
The format for the cmdlets is:
```PowerShell
<cmdlet> -ExclusionProcess "<item1>, <item2>, <item3>"
```
The following are allowed as the \<cmdlet>:
Configuration action | PowerShell cmdlet
---|---
Create or overwrite the list | `Set-MpPreference`
Add to the list | `Add-MpPreference`
Remove items from the list | `Remove-MpPreference`
>[!IMPORTANT]
>If you have created a list, either with `Set-MpPreference` or `Add-MpPreference`, using the `Set-MpPreference` cmdlet again will overwrite the existing list.
For example, the following code snippet would cause Windows Defender AV scans to exclude any file that is opened by the defined processes. This exclusion will apply to any file that is opened by the processes that are in the specified folder:
```PowerShell
Add-MpPreference -ExclusionProcess "c:\internal\test.exe, d:\org\ui\compile43-h.exe"
```
For example, files opened by the process *c:\outside\test.exe* will not be excluded. This is the because the opening process is located in a different folder ("outside" instead of "internal"), even though the process's file name is the same.
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
**Use Windows Management Instruction (WMI) to configure file name, folder, or file extension exclusions:**
Use the [ **Set**, **Add**, and **Remove** methods of the **MSFT_MpPreference**](https://msdn.microsoft.com/en-us/library/dn455323(v=vs.85).aspx) class for the following properties:
```WMI
ExclusionProcess
```
The use of **Set**, **Add**, and **Remove** is analogous to their counterparts in PowerShell: `Set-MpPreference`, `Add-MpPreference`, and `Remove-MpPreference`.
See the following for more information and allowed parameters:
- [Windows Defender WMIv2 APIs](https://msdn.microsoft.com/en-us/library/dn439477(v=vs.85).aspx)
<a id="man-tools"></a>
**Use Configuration Manager to configure file name, folder, or file extension exclusions:**
See [How to create and deploy antimalware policies: Exclusion settings](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#exclusion-settings) for details on configuring System Center Configuration Manager (current branch).
**Use Microsoft Intune to configure file name, folder, or file extension exclusions:**
See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune](https://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune) and [Windows Defender policy settings in Windows 10](https://docs.microsoft.com/en-us/intune/deploy-use/windows-10-policy-settings-in-microsoft-intune#windows-defender-1) for more details.
**Use the Windows Defender Security Center app to configure file name, folder, or file extension exclusions:**
See [Add exclusions in the Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions) for instructions.
<a id="wildcards"></a>
## Use wildcards in the file name and folder path or extension exclusion lists
The use of wildcards in the process exclusion list is different from their use in other exclusion lists.
In particular, you cannot use the question mark **?** wilcard, and the asterisk **\*** wildcard can only be used at the end of a complete path. You can still use environment variables (such as %APPDATA%) as wildcards when defining items in the process exclusion list.
The following table describes how the wildcards can be used in the process exclusion list:
Wildcard | Use | Example use | Example matches
---|---|---|---
**\*** (asterisk) | Replaces any number of chararacters | <ul><li>C:\MyData\*</li></ul> | <ul><li>Any file opened by C:\MyData\file.exe</li></ul>
**?** (question mark) | Not available | \- | \-
Environment variables | The defined variable will be populated as a path when the exclusion is evaluated | <ul><li>%ALLUSERSPROFILE%\CustomLogFiles\file.exe</li><li>%APPDATA%\Data\file.exe</li></ul> | <ul><li>Any file opened by C:\ProgramData\CustomLogFiles\file.exe</li><li>Any file opened by C:\Users\username\AppData\Roaming\Data\file.exe</li></ul>
<a id="review"></a>
## Review the list of exclusions
You can retrieve the items in the exclusion list with PowerShell, [System Center Configuration Manager](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#exclusion-settings), [Intune](https://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune), or the [Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions).
If you use PowerShell, you can retrieve the list in two ways:
- Retrieve the status of all Windows Defender AV preferences. Each of the lists will be displayed on separate lines, but the items within each list will be combined into the same line.
- Write the status of all preferences to a variable, and use that variable to only call the specific list you are interested in. Each use of `Add-MpPreference` is written to a new line.
**Review the list of exclusions alongside all other Windows Defender AV preferences:**
Use the following cmdlet:
```PowerShell
Get-MpPreference
```
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
**Retrieve a specific exclusions list:**
Use the following code snippet (enter each line as a separate command); replace **WDAVprefs** with whatever label you want to name the variable:
```PowerShell
$WDAVprefs = Get-MpPreference
$WDAVprefs.ExclusionProcess
```
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
<!--
<a id="validate"></a>
## Validate exclusions lists with the EICAR test file
You can validate that your exclusion lists are working by using PowerShell with either the `Invoke-WebRequest` cmdlet or the .NET WebClient class to download a test file.
In the following PowerShell snippet, replace *test.txt* with a file that conforms to your exclusion rules. For example, if you have excluded the .testing extension, replace *test.txt* with *test.testing*. If you are testing a path, ensure you run the cmdlet within that path.
```PowerShell
Invoke-WebRequest "http://www.eicar.org/download/eicar.com.txt" -OutFile "test.txt"
```
If Windows Defender AV reports malware, then the rule is not working. If there is no report of malware, and the downloaded file exists, then the exclusion is working. You can open the file to confirm the contents are the same as what is described on the [EICAR testfile website](http://www.eicar.org/86-0-Intended-use.html).
You can also use the following PowerShell code, which calls the .NET WebClient class to download the testfile - as with the `Invoke-WebRequest` cmdlet; replace *c:\test.txt* with a file that conforms to the rule you are validating:
```PowerShell
$client = new-object System.Net.WebClient
$client.DownloadFile("http://www.eicar.org/download/eicar.com.txt","c:\test.txt")
```
-->
## Related topics
- [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
- [Configure and validate exclusions based on file name, extension, and folder location](configure-extension-file-exclusions-windows-defender-antivirus.md)
- [Configure exclusions in Windows Defender AV on Windows Servery](configure-server-exclusions-windows-defender-antivirus.md)
- [Customize, initiate, and review the results of Windows Defender AV scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

4
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@ -42,7 +42,7 @@ These activities include events such as processes making unusual changes to exis
## Configure and enable always-on protection
You can configure how always-on protection works with the following Group Policy settings described in this section.
You can configure how always-on protection works with the Group Policy settings described in this section.
To configure these settings:
@ -69,6 +69,8 @@ Real-time protection | Turn on raw volume write notifications | Information abou
Real-time protection | Define the maximum size of downloaded files and attachments to be scanned | You can define the size in kilobytes | Enabled
Real-time protection | Configure monitoring for incoming and outgoing file and program activity | Specify whether monitoring should occur on incoming, outgoing, both, or neither direction. This is relevant for Windows Server installations where you have defined specific servers or Server Roles that see large amounts of file changes in only one direction and you want to improve network performance. Note that fully updated endpoints (and servers) on a network will see little performance impact irrespective of the number or direction of file changes.
Scan | Turn on heuristics | Heuristic protection will disable or block suspicious activity immediately before the AV engine is asked to detect the activity | Enabled (both directions)
Root | Allow antimalware service to startup with normal priority | You can lower the priority of the AV engine, which may be useful in lightweight deployments where you want to have as lean a startup process as possible. This may impact protection on the endpoint. | Enabled
Root | Allow antimalware service to remain running always | If protection updates have been disabled, you can set Windows Defender AV to still run. This lowers the protection on the endpoint. | Disabled

55
windows/keep-secure/configure-remediation-windows-defender-antivirus.md
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@ -1,7 +1,7 @@
---
title: Remediate and resolve infections detected by Windows Defender AV
description: Configure what Windows Defender AV should do when it detects a threat, and how long quarantined files should be retained in the quarantine folder
keywords:
keywords: remediation, fix, remove, threats, quarantine, scan, restore
search.product: eADQiWindows 10XVcnh
ms.pagetype: security
ms.prod: w10
@ -31,24 +31,47 @@ author: iaanw
- Windows Management Instrumentation (WMI)
- Microsoft Intune
When Windows Defender Antivirus runs a scan, it will attempt to remediate or remove threats that it finds. You can configure how Windows Defender AV should react to certain threats, whether it should create a restore point before remediating, and when it should remove remediated threats.
This topic describes how to configure these settings with Group Policy, but you can also use [System Center Configuration Manager](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#threat-overrides-settings) and [Microsoft Intune](https://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune#choose-default-actions-settings).
You can also use the [`Set-MpPreference` PowerShell cmdlet](https://technet.microsoft.com/itpro/powershell/windows/defender/set-mppreference) or [`MSFT_MpPreference` WMI class](https://msdn.microsoft.com/en-us/library/dn439477(v=vs.85).aspx) to configure these settings.
## Configure remediation options
You can configure how remediation with the Group Policy settings described in this section.
To configure these settings:
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
4. Click **Policies** then **Administrative templates**.
5. Expand the tree to **Windows components > Windows Defender Antivirus** and then the **Location** specified in the table below.
6. Double-click the policy **Setting** as specified in the table below, and set the option to your desired configuration. Click **OK**, and repeat for any other settings.
Main | Allow antimalware service to startup with normal priority
Main | Allow antimalware service to remain running always
Scan | Create a system restore point
Main | Turn off routine remediation
Quarantine | Configure removal of items from Quarantine folder
Scan | Turn on removal of items from scan history folder
Location | Setting | Description | Default setting (if not configured)
---|---|---|---
Scan | Create a system restore point | A system restore point will be created each day before cleaning or scanning is attempted | Disabled
Scan | Turn on removal of items from scan history folder | Specify how many days items should be kept in the scan history | 30 days
Root | Turn off routine remediation | You can specify whether Windows Defender AV automatically remediates threats, or if it should ask the endpoint user what to do. | Disabled (threats are remediated automatically)
Quarantine | Configure removal of items from Quarantine folder | Specify how many days items should be kept in quarantine before being removed | Never removed
Threats | Specify threat alert levels at which default action should not be taken when detected | Every threat that is detected by Windows Defender AV is assigned a threat level (low, medium, high, or severe). You can use this setting to define how all threats for each of the threat levels should be remediated (quarantined, removed, or ignored) | Not applicable
Threats | Specify threats upon which default action should not be taken when detected | Specify how specific threats (using their threat ID) should be remediated. You can specify whether the specific threat should be quarantined, removed, or ignored | Not applicable
Also see the [Configure remediation-required scheduled full scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md#remed) topic for more remediation-related settings.
## Related topics
[Configure remediation-required scheduled full scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md#remed)
Threats | Specify threat alert levels at which default action should not be taken when detected
Threats | Specify threats upon which default action should not be taken when detected
https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#threat-overrides-settings
https://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune#choose-default-actions-settings
- [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
- [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
- [Configure and run on-demand Windows Defender AV scans](run-scan-windows-defender-antivirus.md)
- [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
- [Configure end-user interaction with Windows Defender AV](configure-end-user-interaction-windows-defender-antivirus.md)
- [Customize, initiate, and review the results of Windows Defender AV scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

84
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@ -0,0 +1,84 @@
---
title: Automatic and customized exclusions for Windows Defender AV on Windows Server 2016
description: Windows Server 2016 includes automatic exclusions, based on Server Role. You can also add custom exclusions.
keywords: exclusions, server, auto-exclusions, automatic, custom, scans
search.product: eADQiWindows 10XVcnh
ms.pagetype: security
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
ms.pagetype: security
localizationpriority: medium
author: iaanw
---
# Configure exclusions in Windows Defender AV on Windows Server 2016
**Applies to:**
- Windows Server 2016
**Audience**
- Enterprise security administrators
**Manageability available with**
- Group Policy
- PowerShell
- Windows Management Instrumentation (WMI)
If you are using Windows Defender Antivirus to protect Windows Server 2016 machines, you are [automatically enrolled in certain exclusions](https://technet.microsoft.com/en-us/windows-server-docs/security/windows-defender/automatic-exclusions-for-windows-defender), as defined by your specified Windows Server Role.
These exclusions will not appear in the standard exclusion lists shown in the [Windows Defender Security Center app](windows-defender-security-center-antivirus.md#exclusions).
You can still add or remove custom exclusions (in addition to the Server Role-defined auto exclusions) as described in the other exclusion-related topics:
- [Configure and validate exclusions based on file name, extension, and folder location](configure-extension-file-exclusions-windows-defender-antivirus.md)
- [Configure and validate exclusions for files opened by processes](configure-process-opened-file-exclusions-windows-defender-antivirus.md)
You can disable the auto-exclusions lists with Group Policy, PowerShell cmdlets, and WMI.
**Use Group Policy to disable the auto-exclusions list on Windows Server 2016:**
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
4. Click **Policies** then **Administrative templates**.
5. Expand the tree to **Windows components > Windows Defender Antivirus > Exclusions**.
6. Double-click the **Turn off Auto Exclusions** setting and set the option to **Enabled**. Click **OK**.
**Use PowerShell cmdlets to disable the auto-exclusions list on Windows Server 2016:**
Use the following cmdlets:
```PowerShell
Set-MpPreference -DisableAutoExclusions
```
See [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md) and [Defender cmdlets](https://technet.microsoft.com/itpro/powershell/windows/defender/index) for more information on how to use PowerShell with Windows Defender Antivirus.
**Use Windows Management Instruction (WMI) to disable the auto-exclusions list on Windows Server 2016:**
Use the [**Set** method of the **MSFT_MpPreference**](https://msdn.microsoft.com/en-us/library/dn455323(v=vs.85).aspx) class for the following properties:
```WMI
DisableAutoExclusions
```
See the following for more information and allowed parameters:
- [Windows Defender WMIv2 APIs](https://msdn.microsoft.com/en-us/library/dn439477(v=vs.85).aspx)
## Related topics
- [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
- [Configure and validate exclusions based on file name, extension, and folder location](configure-extension-file-exclusions-windows-defender-antivirus.md)
- [Configure and validate exclusions for files opened by processes](configure-process-opened-file-exclusions-windows-defender-antivirus.md)
- [Customize, initiate, and review the results of Windows Defender AV scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

2
windows/keep-secure/defender-compatibility-windows-defender-advanced-threat-protection.md
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@ -30,4 +30,4 @@ Windows Defender Antivirus will continue to receive updates, and the *mspeng.exe
The Windows Defender Antivirus interface will be disabled, and users on the endpoint will not be able to use Windows Defender Antivirus to perform on-demand scans or configure most options.
For more information, see the **Compatibility** section in the [Windows Defender Antivirus in Windows 10 topic](windows-defender-in-windows-10.md).
For more information, see the [Windows Defender Antivirus and Windows Defender ATP compatibility topic](windows-defender-antivirus-compatibility.md).

9
windows/keep-secure/deploy-manage-report-windows-defender-antivirus.md
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@ -45,11 +45,11 @@ PowerShell|Deploy with Group Policy, System Center Configuration Manager, or man
Group Policy and Active Directory (domain-joined)|Use a Group Policy Object to deploy configuration changes and ensure Windows Defender Antivirus is enabled.|Use Group Policy Objects (GPOs) to [Configure update options for Windows Defender Antivirus][] and [Configure Windows Defender features][]|Endpoint reporting is not available with Group Policy. You can generate a list of [Group Policies to determine if any settings or policies are not applied][]
Microsoft Azure|Deploy Microsoft Antimalware for Azure in the [Azure portal, by using Visual Studio virtual machine configuration, or using Azure PowerShell cmdlets](https://docs.microsoft.com/en-us/azure/security/azure-security-antimalware#antimalware-deployment-scenarios). You can also [Install Endpoint protection in Azure Security Center](https://docs.microsoft.com/en-us/azure/security-center/security-center-install-endpoint-protection)|Configure [Microsoft Antimalware for Virtual Machines and Cloud Services with Azure PowerShell cmdlets](https://docs.microsoft.com/en-us/powershell/servicemanagement/azure.antimalware/v3.4.0/azure.antimalware) or [use code samples](https://gallery.technet.microsoft.com/Antimalware-For-Azure-5ce70efe)|Use [Microsoft Antimalware for Virtual Machines and Cloud Services with Azure PowerShell cmdlets](https://docs.microsoft.com/en-us/powershell/servicemanagement/azure.antimalware/v3.4.0/azure.antimalware) to enable monitoring. You can also review usage reports in Azure Active Directory to determine suspicious activity, including the [Possibly infected devices][] report and configure an SIEM tool to report on [Windows Defender Antivirus events][] and add that tool as an app in AAD.
1. <span id="fn1" />The availability of some functions and features, especially related to cloud-delivered protection, differ between System Center Configuration Manager, current branch (for example, System Center Configuration Manager 2016) and System Center Configuration Manager 2012. In this library, we've focused on Windows 10, Windows Server 2016, and System Center Configuration Manager, current branch (2016). See the [Utilize Microsoft cloud-provided protection in Windows Defender Antivirus](utilize-microsoft-cloud-protection-windows-defender-antivirus.md) topic for a table that describes the major differences. [(Return to table)](#ref1)
1. <span id="fn1" />The availability of some functions and features, especially related to cloud-delivered protection, differ between System Center Configuration Manager, current branch (for example, System Center Configuration Manager 2016) and System Center Configuration Manager 2012. In this library, we've focused on Windows 10, Windows Server 2016, and System Center Configuration Manager, current branch (2016). See the [Utilize Microsoft cloud-provided protection in Windows Defender Antivirus](utilize-microsoft-cloud-protection-windows-defender-antivirus.md) topic for a table that describes the major differences. [(Return to table)](#ref1)
1. <span id="fn2" />Configuration of features and protection, including configuring product and protection updates, are further described in the [Configure Windows Defender Antivirus features](configure-notifications-windows-defender-antivirus.md) section in this library. [(Return to table)](#ref2)
1. <span id="fn2" />Configuration of features and protection, including configuring product and protection updates, are further described in the [Configure Windows Defender Antivirus features](configure-notifications-windows-defender-antivirus.md) section in this library. [(Return to table)](#ref2)
1. <span id="fn3" />In Windows 10, Windows Defender Antivirus is a component available without installation or deployment of an additional client or service. It will automatically be enabled when third-party antivirus products are either uninstalled or out of date ([except on Windows Server 2016](windows-defender-antivirus-on-windows-server-2016.md). Traditional deployment therefore is not required. Deployment here refers to ensuring the Windows Defender Antivirus component is available and enabled on endpoints or servers. [(Return to table)](#ref3)
1. <span id="fn3" />In Windows 10, Windows Defender Antivirus is a component available without installation or deployment of an additional client or service. It will automatically be enabled when third-party antivirus products are either uninstalled or out of date ([except on Windows Server 2016](windows-defender-antivirus-on-windows-server-2016.md). Traditional deployment therefore is not required. Deployment here refers to ensuring the Windows Defender Antivirus component is available and enabled on endpoints or servers. [(Return to table)](#ref3)
@ -88,7 +88,4 @@ Topic | Description
[Manage Windows Defender Antivirus updates and apply baselines](manage-updates-baselines-windows-defender-antivirus.md) | There are two parts to updating Windows Defender Antivirus: updating the client on endpoints (product updates), and updating definitions (protection updates). You can update definitions in a number of ways, using System Center Configuration Manager, Group Policy, PowerShell, and WMI.
[Monitor and report on Windows Defender Antivirus protection](report-monitor-windows-defender-antivirus.md) | You can use System Center Configuration Manager, a third-party SIEM product (by consuming Windows event logs), or Microsoft Intune to monitor protection status and create reports about endpoint protection
## Related topics
- [Windows Defender Antivirus in Windows 10](windows-defender-in-windows-10.md)
- [Configure Windows Defender Antivirus features](configure-windows-defender-antivirus-features.md)

2
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@ -35,6 +35,6 @@ The remaining topic in this section provides end-to-end advice and best practice
## Related topics
- [Windows Defender Antivirus in Windows 10](windows-defender-in-windows-10.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)
- [Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md)
- [Deployment guide for Windows Defender Antivirus in a virtual desktop infrasructure (VDI) environment](deployment-vdi-windows-defender-antivirus.md)

6
windows/keep-secure/deployment-vdi-windows-defender-antivirus.md
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@ -85,7 +85,7 @@ You can run a quick scan [from the command line](command-line-arguments-windows-
### Deploy the base image
You’ll then need to deploy the base image across your VDI. For example, you can create or clone a VHD from your base image, and then use that VHD when you create or start your VMs.
You'll then need to deploy the base image across your VDI. For example, you can create or clone a VHD from your base image, and then use that VHD when you create or start your VMs.
The following references provide ways you can create and deploy the base image across your VDI:
@ -152,7 +152,7 @@ Scheduled scans run in addition to [real-time protection and scanning](configure
The start time of the scan itself is still based on the scheduled scan policy – ScheduleDay, ScheduleTime, ScheduleQuickScanTime.
<!-- individual instructions will be removed and linked to RS2 content when it’s live, for now I’ll put them inline-->
<!-- individual instructions will be removed and linked to RS2 content when it's live, for now I'll put them inline-->
**Use Group Policy to randomize scheduled scan start times:**
@ -229,7 +229,7 @@ Sometimes, Windows Defender AV notifications may be sent to or persist across mu
### Disable scans after an update
This setting will prevent a scan from occurring after receiving an update. You can apply this when creating the base image if you have also run a quick scan. This prevents the newly updated VM from performing a scan again (as you’ve already scanned it when you created the base image).
This setting will prevent a scan from occurring after receiving an update. You can apply this when creating the base image if you have also run a quick scan. This prevents the newly updated VM from performing a scan again (as you've already scanned it when you created the base image).
>[!IMPORTANT]
>Running scans after an update will help ensure your VMs are protected with the latest definition updates. Disabling this option will reduce the protection level of your VMs and should only be used when first creating or deploying the base image.

4
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@ -46,7 +46,7 @@ PUAs are blocked when a user attempts to download or install the detected file,
- The file is in the %downloads% folder
- The file is in the %temp% folder
The file is placed in the quarantine section so it won’t run.
The file is placed in the quarantine section so it won't run.
When a PUA is detected on an endpoint, the endpoint will present a notification to the user ([unless notifications have been disabled](configure-notifications-windows-defender-antivirus.md)) in the same format as normal threat detections (prefaced with "PUA:").
@ -66,7 +66,7 @@ You can enable the PUA protection feature with System Center Configuration Manag
You can also use the PUA audit mode to detect PUA without blocking them. The detections will be captured in the Windows event log.
This feature is useful if your company is conducting an internal software security compliance check and you’d like to avoid any false positives.
This feature is useful if your company is conducting an internal software security compliance check and you'd like to avoid any false positives.
**Use Configuration Manager to configure the PUA protection feature:**

8
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@ -127,7 +127,7 @@ See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune](http
**Enable cloud-delivered protection on individual clients with the Windows Defender Security Center app**
> [!NOTE]
> If the **Configure local setting override for reporting Microsoft MAPS** GP setting is set to **Disabled**, then the **Cloud-based protection** setting in Windows Settings will be greyed-out and unavailable. Changes made through a Group Policy Object must first be deployed to individual endpoints before the setting will be updated in Windows Settings.
> If the **Configure local setting override for reporting Microsoft MAPS** Group Policy setting is set to **Disabled**, then the **Cloud-based protection** setting in Windows Settings will be greyed-out and unavailable. Changes made through a Group Policy Object must first be deployed to individual endpoints before the setting will be updated in Windows Settings.
1. Open the Windows Defender Security Center app by clicking the shield icon in the task bar or searching the start menu for **Defender**.
@ -139,15 +139,15 @@ See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune](http
3. Confirm that **Cloud-based Protection** and **Automatic sample submission** are switched to **On**.
>[!NOTE]
>If automatic sample submission has been configured with GP then the setting will be greyed-out and unavailble.
>If automatic sample submission has been configured with Group Policy then the setting will be greyed-out and unavailble.
## Related topics
- [Windows Defender Antivirus in Windows 10](windows-defender-in-windows-10.md)
- [Configure the cloud block timeout period](configure-cloud-block-timeout-period-windows-defender-antivirus.md)
- [Configure the block at first sight feature](configure-block-at-first-sight-windows-defender-antivirus.md)
- [Use PowerShell cmdlets to configure and run Windows Defender Antivirus](use-powershell-cmdlets-windows-defender-antivirus.md)
- [Help secure Windows PCs with Endpoint Protection for Microsoft Intune](https://docs.microsoft.com/en-us/intune/deploy-use/help-secure-windows-pcs-with-endpoint-protection-for-microsoft-intune)]
- [Defender cmdlets](https://technet.microsoft.com/en-us/library/dn433280.aspx)
- [Utilize Microsoft cloud-delivered protection in Windows Defender Antivirus](utilize-microsoft-cloud-protection-windows-defender-antivirus.md)
- [How to create and deploy antimalware policies: Cloud-protection service](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#cloud-protection-service)
- [How to create and deploy antimalware policies: Cloud-protection service](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#cloud-protection-service)
- - [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

4
windows/keep-secure/evaluate-windows-defender-antivirus.md
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@ -24,7 +24,7 @@ author: iaanw
- Enterprise security administrators
If you’re an enterprise security administrator, and you want to determine how well Windows Defender Antivirus protects you from viruses, malware, and potentially unwanted applications, then you can use this guide to help you evaluate Microsoft protection.
If you're an enterprise security administrator, and you want to determine how well Windows Defender Antivirus protects you from viruses, malware, and potentially unwanted applications, then you can use this guide to help you evaluate Microsoft protection.
It explains the important features available for both small and large enterprises in Windows Defender, and how they will increase malware detection and protection across your network.
@ -44,7 +44,7 @@ You can also download a PowerShell that will enable all the settings described i
## Related topics
- [Windows Defender Antivirus](windows-defender-in-windows-10.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)
- [Deploy, manage, and report](deploy-manage-report-windows-defender-antivirus.md)

10
windows/keep-secure/manage-event-based-updates-windows-defender-antivirus.md
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@ -124,7 +124,7 @@ You can also use Group Policy, PowerShell, or WMI to configure Windows Defender
**Use PowerShell cmdlets to download updates when Windows Defender AV is not present:**
Use the following cmdlets to enable cloud-delivered protection:
Use the following cmdlets:
```PowerShell
Set-MpPreference -SignatureDisableUpdateOnStartupWithoutEngine
@ -171,9 +171,13 @@ If you have enabled cloud-delivered protection, Windows Defender AV will send fi
## Related topics
- [Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md)
- [Manage Windows Defender Antivirus updates and apply baselines](manage-updates-baselines-windows-defender-antivirus.md)
- [Update and manage Windows Defender in Windows 10](get-started-with-windows-defender-for-windows-10.md)
- [Troubleshoot Windows Defender in Windows 10](troubleshoot-windows-defender-in-windows-10.md)
- [Manage Windows Defender Antivirus protection and definition updates](manage-protection-updates-windows-defender-antivirus.md)
- [Manage when protection updates should be downloaded and applied](manage-protection-update-schedule-windows-defender-antivirus.md)
- [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
- [Manage updates for mobile devices and virtual machines (VMs)](manage-updates-mobile-devices-vms-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

16
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@ -56,7 +56,7 @@ If Windows Defender AV did not download protection updates for a specified perio
**Use PowerShell cmdlets to configure catch-up protection updates:**
Use the following cmdlets to enable cloud-delivered protection:
Use the following cmdlets:
```PowerShell
Set-MpPreference -SignatureUpdateCatchupInterval
@ -145,11 +145,11 @@ This feature can be enabled for both full and quick scans.
4. Enter the number of scans that can be missed before a scan will be automatically run when the user next logs on to the PC. The type of scan that is run is determined by the **Specify the scan type to use for a scheduled scan** (see the [Schedule scans](scheduled-catch-up-scans-windows-defender-antivirus.md) topic). Click **OK**.
> [!NOTE]
> The GP setting title refers to the number of days. The setting, however, is applied to the number of scans (not days) before the catch-up scan will be run.
> The Group Policy setting title refers to the number of days. The setting, however, is applied to the number of scans (not days) before the catch-up scan will be run.
**Use PowerShell cmdlets to XX:**
**Use PowerShell cmdlets to configure catch-up scans:**
Use the following cmdlets to enable cloud-delivered protection:
Use the following cmdlets:
```PowerShell
Set-MpPreference -DisableCatchupFullScan
@ -185,6 +185,10 @@ See the following for more information and allowed parameters:
## Related topics
- [Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md)
- [Manage Windows Defender Antivirus updates and apply baselines](manage-updates-baselines-windows-defender-antivirus.md)
- [Update and manage Windows Defender in Windows 10](get-started-with-windows-defender-for-windows-10.md)
- [Troubleshoot Windows Defender in Windows 10](troubleshoot-windows-defender-in-windows-10.md)
- [Manage Windows Defender Antivirus protection and definition updates](manage-protection-updates-windows-defender-antivirus.md)
- [Manage when protection updates should be downloaded and applied](manage-protection-update-schedule-windows-defender-antivirus.md)
- [Manage event-based forced updates](manage-event-based-updates-windows-defender-antivirus.md)
- [Manage updates for mobile devices and virtual machines (VMs)](manage-updates-mobile-devices-vms-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

10
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@ -74,7 +74,7 @@ You can also randomize the times when each endpoint checks and downloads protect
**Use PowerShell cmdlets to schedule protection updates:**
Use the following cmdlets to enable cloud-delivered protection:
Use the following cmdlets:
```PowerShell
Set-MpPreference -SignatureScheduleDay
@ -100,9 +100,13 @@ See the following for more information and allowed parameters:
## Related topics
- [Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md)
- [Manage Windows Defender Antivirus updates and apply baselines](manage-updates-baselines-windows-defender-antivirus.md)
- [Update and manage Windows Defender in Windows 10](get-started-with-windows-defender-for-windows-10.md)
- [Troubleshoot Windows Defender in Windows 10](troubleshoot-windows-defender-in-windows-10.md)
- [Manage Windows Defender Antivirus protection and definition updates](manage-protection-updates-windows-defender-antivirus.md)
- [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
- [Manage event-based forced updates](manage-event-based-updates-windows-defender-antivirus.md)
- [Manage updates for mobile devices and virtual machines (VMs)](manage-updates-mobile-devices-vms-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

9
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@ -131,6 +131,11 @@ See the following for more information:
## Related topics
- [Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md)
- [Manage Windows Defender Antivirus updates and apply baselines](manage-updates-baselines-windows-defender-antivirus.md)
- [Manage when protection updates should be downloaded and applied](manage-protection-update-schedule-windows-defender-antivirus.md)
- [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
- [Manage event-based forced updates](manage-event-based-updates-windows-defender-antivirus.md)
- [Manage updates for mobile devices and virtual machines (VMs)](manage-updates-mobile-devices-vms-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)
- [Update and manage Windows Defender in Windows 10](get-started-with-windows-defender-for-windows-10.md)
- [Troubleshoot Windows Defender in Windows 10](troubleshoot-windows-defender-in-windows-10.md)

4
windows/keep-secure/review-scan-results-windows-defender-antivirus.md
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@ -40,7 +40,7 @@ After Windows Defender Antivirus has completed a scan, whether it is an [on-dema
See [How to monitor Endpoint Protection status](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/monitor-endpoint-protection).
**Use the Windows Defender Security app to review Windows Defender AV scan results:**
**Use the Windows Defender Security Center app to review Windows Defender AV scan results:**
1. Open the Windows Defender Security Center by clicking the shield icon in the task bar or searching the start menu for **Defender**.
@ -87,5 +87,5 @@ See [Help secure Windows PCs with Endpoint Protection for Microsoft Intune: Moni
## Related topics
- [Customize, initiate, and review the results of Windows Defender AV scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
- [Customize, initiate, and review the results of Windows Defender AV scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

2
windows/keep-secure/run-scan-windows-defender-antivirus.md
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@ -59,7 +59,7 @@ mpcmdrun.exe -scan -scantype 1
See [Use the mpcmdrun.exe commandline tool to configure and manage Windows Defender Antivirus](command-line-arguments-windows-defender-antivirus.md) for more information on how to use the tool and additional parameters, including starting a full scan or defining paths.
See [Use the mpcmdrun.exe commandline tool to configure and manage Windows Defender Antivirus](command-line-arguments-windows-defender-antivirus.md) for more information on how to use the tool and additional parameters, including starting a full scan or defining paths.

2
windows/keep-secure/scheduled-catch-up-scans-windows-defender-antivirus.md
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@ -82,7 +82,7 @@ Location | Setting | Description | Default setting (if not configured)
Scan | Specify the scan type to use for a scheduled scan | Quick scan
Scan | Specify the day of the week to run a scheduled scan | Specify the day (or never) to run a scan. | Never
Scan | Specify the time of day to run a scheduled scan | Specify the number of minutes after midnight (for example, enter **60** for 1 am) | 2 am
Main | Randomize scheduled task times | Randomize the start time of the scan to any interval plus or minus 30 minutes. This can be useful in VM or VDI deployments | Enabled
Root | Randomize scheduled task times | Randomize the start time of the scan to any interval plus or minus 30 minutes. This can be useful in VM or VDI deployments | Enabled
**Use PowerShell cmdlets to schedule scans:**

6
windows/keep-secure/specify-cloud-protection-level-windows-defender-antivirus.md
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@ -40,7 +40,7 @@ You can specify the level of cloud-protection offered by Windows Defender Antivi
1. On your Group Policy management machine, open the [Group Policy Management Console](https://technet.microsoft.com/library/cc731212.aspx), right-click the Group Policy Object you want to configure and click **Edit**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
3. In the **Group Policy Management Editor** go to **Computer configuration**.
4. Click **Policies** then **Administrative templates**.
@ -48,7 +48,7 @@ You can specify the level of cloud-protection offered by Windows Defender Antivi
1. Double-click the **Select cloud protection level** setting and set it to **Enabled**. Select the level of protection:
1. Setting to **Default Windows Defender Antivirus blocking level** will provide strong detection without increasing the risk of detecting legitimate files.
2. Setting to **High blocking level** will apply a strong level of detection. While unlikely, some legitimate files may be detected (although you will have the option to unblock or dispute that detection).
2. Setting to **High blocking level** will apply a strong level of detection. While unlikely, some legitimate files may be detected (although you will have the option to unblock or dispute that detection).
1. Click **OK**.
@ -62,7 +62,7 @@ You can specify the level of cloud-protection offered by Windows Defender Antivi
## Related topics
- [Windows Defender Antivirus in Windows 10](windows-defender-in-windows-10.md)
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)
- [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)
- [How to create and deploy antimalware policies: Cloud-protection service](https://docs.microsoft.com/en-us/sccm/protect/deploy-use/endpoint-antimalware-policies#cloud-protection-service)

4
windows/keep-secure/troubleshoot-windows-defender-antivirus.md
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@ -2283,9 +2283,9 @@ Description of the error. </dt>
<p>User action:</p>
</td>
<td colspan="2">
<p>You should restart the system then run a full scan because it’s possible the system was not protected for some time.
<p>You should restart the system then run a full scan because it's possible the system was not protected for some time.
</p>
<p>The Windows Defender client’s real-time protection feature encountered an error because one of the services failed to start.
<p>The Windows Defender client's real-time protection feature encountered an error because one of the services failed to start.
</p>
<p>If it is followed by a 3007 event ID, the failure was temporary and the antimalware client recovered from the failure.
</p>

118
windows/keep-secure/use-group-policy-windows-defender-antivirus.md
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@ -18,11 +18,7 @@ author: iaanw
- Windows 10, version 1703
You can use [Group Policy](https://msdn.microsoft.com/en-us/library/ee663280(v=vs.85).aspx) to configure and manage Windows Defender AV on your endpoints.
<!--
The table in this topic lists the Group Policy settings available in Windows 10, version 1703, and provides links to the appropriate topic in this documentation library (where applicable).
-->
You can use [Group Policy](https://msdn.microsoft.com/en-us/library/ee663280(v=vs.85).aspx) to configure and manage Windows Defender Antivirus on your endpoints.
In general, you can use the following procedure to configure or change Windows Defender AV group policy settings:
@ -34,10 +30,120 @@ In general, you can use the following procedure to configure or change Windows D
5. Expand the tree to **Windows components > Windows Defender Antivirus**.
6. Expand the section that contains the setting you want to configure, double-click the setting to open it, and make configuration changes.
6. Expand the section (referred to as **Location** in the table in this topic) that contains the setting you want to configure, double-click the setting to open it, and make configuration changes.
7. [Deploy the updated GPO as you normally do](https://msdn.microsoft.com/en-us/library/ee663280(v=vs.85).aspx).
The following table in this topic lists the Group Policy settings available in Windows 10, version 1703, and provides links to the appropriate topic in this documentation library (where applicable).
Location | Setting | Documented in topic
---|---|---
Client interface | Enable headless UI mode | [Prevent users from seeing or interacting with the Windows Defender AV user interface](prevent-end-user-interaction-windows-defender-antivirus.md)
Client interface | Display additional text to clients when they need to perform an action | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
Client interface | Suppress all notifications | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
Client interface | Suppresses reboot notifications | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
Exclusions | Extension Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
Exclusions | Path Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
Exclusions | Process Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
Exclusions | Turn off Auto Exclusions | [Configure and validate exclusions in Windows Defender AV scans](configure-exclusions-windows-defender-antivirus.md)
MAPS | Configure the 'Block at First Sight' feature | [Enable the Block at First Sight feature](configure-block-at-first-sight-windows-defender-antivirus.md)
MAPS | Join Microsoft MAPS | [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)
MAPS | Send file samples when further analysis is required | [Enable cloud-delivered protection](enable-cloud-protection-windows-defender-antivirus.md)
MAPS | Configure local setting override for reporting to Microsoft MAPS | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
MpEngine | Configure extended cloud check | [Configure the cloud block timeout period](configure-cloud-block-timeout-period-windows-defender-antivirus.md)
MpEngine | Select cloud protection level | [Specify the cloud-delivered protection level](specify-cloud-protection-level-windows-defender-antivirus.md)
Network inspection system | Specify additional definition sets for network traffic inspection | Not used
Network inspection system | Turn on definition retirement | Not used
Network inspection system | Turn on protocol recognition | Not used
Quarantine | Configure local setting override for the removal of items from Quarantine folder | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Quarantine | Configure removal of items from Quarantine folder | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for monitoring file and program activity on your computer | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for monitoring for incoming and outgoing file activity | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for scanning all downloaded files and attachments | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Real-time protection | Configure local setting override for turn on behavior monitoring | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Real-time protection | Configure local setting override to turn on real-time protection | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Real-time protection | Define the maximum size of downloaded files and attachments to be scanned | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Monitor file and program activity on your computer | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Scan all downloaded files and attachments | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Turn off real-time protection | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Turn on behavior monitoring | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Turn on process scanning whenever real-time protection is enabled | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Turn on raw volume write notifications | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Real-time protection | Configure monitoring for incoming and outgoing file and program activity | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Remediation | Configure local setting override for the time of day to run a scheduled full scan to complete remediation | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Remediation | Specify the day of the week to run a scheduled full scan to complete remediation | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Remediation | Specify the time of day to run a scheduled full scan to complete remediation | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Reporting | Configure Watson events | Not used
Reporting | Configure Windows software trace preprocessor components | Not used
Reporting | Configure WPP tracing level | Not used
Reporting | Configure time out for detections in critically failed state | Not used
Reporting | Configure time out for detections in non-critical failed state | Not used
Reporting | Configure time out for detections in recently remediated state | Not used
Reporting | Configure time out for detections requiring additional action | Not used
Reporting | Turn off enhanced notifications | [Configure the notifications that appear on endpoints](configure-notifications-windows-defender-antivirus.md)
Root | Turn off Windows Defender Antivirus | Not used
Root | Define addresses to bypass proxy server | Not used
Root | Define proxy auto-config (.pac) for connecting to the network | Not used
Root | Define proxy server for connecting to the network | Not used
Root | Configure local administrator merge behavior for lists | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Root | Allow antimalware service to startup with normal priority | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
Root | Allow antimalware service to remain running always | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
Root | Turn off routine remediation | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
Root | Randomize scheduled task times | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Allow users to pause scan | [Prevent users from seeing or interacting with the Windows Defender AV user interface](prevent-end-user-interaction-windows-defender-antivirus.md)
Scan | Check for the latest virus and spyware definitions before running a scheduled scan | [Manage event-based forced updates](manage-event-based-updates-windows-defender-antivirus.md)
Scan | Define the number of days after which a catch-up scan is forced | [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
Scan | Turn on catch up full scan | [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
Scan | Turn on catch up quick scan | [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
Scan | Configure local setting override for maximum percentage of CPU utilization | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Scan | Configure local setting override for schedule scan day | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Scan | Configure local setting override for scheduled quick scan time | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Scan | Configure local setting override for scheduled scan time | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Scan | Configure local setting override for the scan type to use for a scheduled scan | [Prevent or allow users to locally modify policy settings](configure-local-policy-overrides-windows-defender-antivirus.md)
Scan | Create a system restore point | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
Scan | Turn on removal of items from scan history folder | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
Scan | Turn on heuristics | [Enable and configure Windows Defender AV always-on protection and monitoring](configure-real-time-protection-windows-defender-antivirus.md)
Scan | Turn on e-mail scanning | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Turn on reparse point scanning | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Run full scan on mapped network drives | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Scan archive files | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Scan network files | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Scan packed executables | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Scan removable drives | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Specify the maximum depth to scan archive files | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Specify the maximum percentage of CPU utilization during a scan | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Specify the maximum size of archive files to be scanned | [Configure scanning options in Windows Defender AV](configure-advanced-scan-types-windows-defender-antivirus.md)
Scan | Specify the day of the week to run a scheduled scan | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Specify the interval to run quick scans per day | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Specify the scan type to use for a scheduled scan | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Specify the time for a daily quick scan | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Specify the time of day to run a scheduled scan | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Scan | Start the scheduled scan only when computer is on but not in use | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Signature updates | Allow definition updates from Microsoft Update | [Manage updates for mobile devices and virtual machines (VMs)](manage-updates-mobile-devices-vms-windows-defender-antivirus.md)
Signature updates | Allow definition updates when running on battery power | [Manage updates for mobile devices and virtual machines (VMs)](manage-updates-mobile-devices-vms-windows-defender-antivirus.md)
Signature updates | Allow notifications to disable definitions based repots to Microsoft MAPS | [Manage event-based forced updates](manage-event-based-updates-windows-defender-antivirus.md)
Signature updates | Allow real-time definition updates based on reports to Microsoft MAPS | [Manage event-based forced updates](manage-event-based-updates-windows-defender-antivirus.md)
Signature updates | Check for the latest virus and spyware definitions on startup | [Manage event-based forced updates](manage-event-based-updates-windows-defender-antivirus.md)
Signature updates | Define file shares for downloading definition updates | [Manage Windows Defender Antivirus protection and definition updates](manage-protection-updates-windows-defender-antivirus.md)
Signature updates | Define the number of days after which a catch up definition update is required | [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
Signature updates | Define the number of days before spyware definitions are considered out of date | [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
Signature updates | Define the number of days before virus definitions are considered out of date | [Manage updates for endpoints that are out of date](manage-outdated-endpoints-windows-defender-antivirus.md)
Signature updates | Define the order of sources for downloading definition updates | [Manage Windows Defender Antivirus protection and definition updates](manage-protection-updates-windows-defender-antivirus.md)
Signature updates | Initiate definition update on startup | [Manage event-based forced updates](manage-event-based-updates-windows-defender-antivirus.md)
Signature updates | Specify the day of the week to check for definition updates | [Manage when protection updates should be downloaded and applied](manage-protection-update-schedule-windows-defender-antivirus.md)
Signature updates | Specify the interval to check for definition updates | [Manage when protection updates should be downloaded and applied](manage-protection-update-schedule-windows-defender-antivirus.md)
Signature updates | Specify the time to check for definition updates | [Manage when protection updates should be downloaded and applied](manage-protection-update-schedule-windows-defender-antivirus.md)
Signature updates | Turn on scan after signature update | [Configure scheduled scans for Windows Defender AV](scheduled-catch-up-scans-windows-defender-antivirus.md)
Threats | Specify threat alert levels at which default action should not be taken when detected | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
Threats | Specify threats upon which default action should not be taken when detected | [Configure remediation for Windows Defender AV scans](configure-remediation-windows-defender-antivirus.md)
## Related topics
- [Reference topics for management and configuration tools](configuration-management-reference-windows-defender-antivirus.md)

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@ -0,0 +1,43 @@
---
title: Windows Defender Antivirus and Windows Defender ATP
description: Windows Defender AV and Windows Defender ATP work together to provide threat detection, remediation, and investigation.
keywords: windows defender, atp, advanced threat protection, compatibility, passive mode
search.product: eADQiWindows 10XVcnh
ms.pagetype: security
ms.prod: w10
ms.mktglfcycl: manage
ms.sitesec: library
ms.pagetype: security
localizationpriority: medium
author: iaanw
---
# Windows Defender Antivirus and Advanced Threat Protection: Better together
**Applies to:**
- Windows 10
**Audience**
- Enterprise security administrators
Windows Defender Advanced Threat Protection (ATP) is an additional service beyond Windows Defender Antivirus that helps enterprises detect, investigate, and respond to advanced persistent threats on their network.
See the [Windows Defender Advanced Threat Protection](windows-defender-advanced-threat-protection.md) topics for more information about the service.
If you are enrolled in Windows Defender ATP, and you are not using Windows Defender AV as your real-time protection service on your endpoints, Windows Defender will automatically enter into a passive mode. On Windows Server 2016 SKUs, Windows Defender AV will not enter into the passive mode and will run alongisde your other antivirus product.
In passive mode, Windows Defender will continue to run (using the *msmpeng.exe* process), and will continue to be updated, however there will be no Windows Defender user interface, scheduled scans won't run, and Windows Defender will not provide real-time protection from malware.
You can still [manage updates for Windows Defender](manage-updates-baselines-windows-defender-antivirus.md), however you can't move Windows Defender into the normal active mode if your endpoints have an up-to-date third-party product providing real-time protection from malware.
If you uninstall the other product, and choose to use Windows Defender to provide protection to your endpoints, Windows Defender will automatically return to its normal active mode.
## Related topics
- [Windows Defender Antivirus in Windows 10](windows-defender-antivirus-in-windows-10.md)

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@ -22,6 +22,22 @@ This library of documentation is aimed for enterprise security administrators wh
For more important information about running Windows Defender on a server platform, see [Windows Defender Overview for Windows Server](https://technet.microsoft.com/library/dn765478.aspx).
Windows Defender AV can be managed with:
- System Center Configuration Manager (as System Center Endpoint Protection, or SCEP)
- Microsoft Intune
It can be configured with:
- System Center Configuration Manager (as System Center Endpoint Protection, or SCEP)
- Microsoft Intune
- PowerShell
- Windows Management Instrumentation (WMI)
- Group Policy
Some of the highlights of Windows Defender AV include:
- [Cloud-delivered protection](utilize-microsoft-cloud-protection-windows-defender-antivirus.md) for near-instant detection and blocking of new and emerging threats
- [Always-on scanning](configure-real-time-protection-windows-defender-antivirus.md), using advanced file and process behavior monitoring and other heuristics (also known as "real-time protection")
- [Dedicated protection updates](manage-updates-baselines-windows-defender-antivirus.md) based on machine-learning, human and automated big-data analysis, and in-depth threat resistance research
## What's new in Windows 10, version 1703
New features for Windows Defender AV in Windows 10, version 1703 include:
@ -35,6 +51,8 @@ We've expanded this documentation library to cover end-to-end deployment, manage
See the [In this library](#in-this-library) list at the end of this topic for links to each of the updated sections in this library.
<a id="sysreq"></a>
## Minimum system requirements
@ -47,19 +65,7 @@ Some features require a certain version of Windows 10 - the minimum version requ
Functionality, configuration, and management is largely the same when using Windows Defender Antivirus on Windows Server 2016, however [there are some differences](windows-defender-antivirus-on-windows-server-2016.md).
## Compatibility with Windows Defender Advanced Threat Protection
Windows Defender Advanced Threat Protection (ATP) is an additional service that helps enterprises to detect, investigate, and respond to advanced persistent threats on their network.
See the [Windows Defender Advanced Threat Protection](windows-defender-advanced-threat-protection.md) topics for more information about the service.
If you are enrolled in Windows Defender ATP, and you are not using Windows Defender AV as your real-time protection service on your endpoints, Windows Defender will automatically enter into a passive mode. On Windows Server 2016 SKUs, Windows Defender AV will not enter into the passive mode and will run alongisde your other antivirus product.
In passive mode, Windows Defender will continue to run (using the *msmpeng.exe* process), and will continue to be updated, however there will be no Windows Defender user interface, scheduled scans won’t run, and Windows Defender will not provide real-time protection from malware.
You can still [manage updates for Windows Defender](manage-updates-baselines-windows-defender-antivirus.md), however you can't move Windows Defender into the normal active mode if your endpoints have an up-to-date third-party product providing real-time protection from malware.
If you uninstall the other product, and choose to use Windows Defender to provide protection to your endpoints, Windows Defender will automatically return to its normal active mode.
#
@ -67,10 +73,10 @@ If you uninstall the other product, and choose to use Windows Defender to provid
Topic | Description
:---|:---
[Evaluate Windows Defender Antivirus protection](evaluate-windows-defender-antivirus.md) | Evaluate the protection capabilities of Windows Defender Antivirus with a specialized evaluation guide and powershell script.
[Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md) | While traditional client deployment is not required for Windows Defender AV, you will need to enable the service. You can also manage how protection and product updates are applies, and receive reports from Configuration Manager, Intune, and with some security information and event monitoring (SIEM) tools.
[Configure Windows Defender features](configure-windows-defender-antivirus-features.md) | Windows Defender AV has a large set of configurable features and options. You can use a number of management tools, including Group Policy, System Center Configuration Manager, Microsoft Intune, PowerShell cmdlets, and Windows Management Instrumentation (WMI). You can configure options such as cloud-delivered protection, always-on monitoring and scanning, and how end-users can interact or override global policy settings.
[Customize, initiate, and review the results of scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md) | You can set up scheduled scans, run on-demand scans, and configure how remediation works when threats are detected.
[Troubleshoot Windows Defender in Windows 10](troubleshoot-windows-defender-antivirus.md)|Review event IDs in Windows Defender Antivirus and take the appropriate actions.
[Reference topics for management and configuration tools](configuration-management-reference-windows-defender-antivirus.md)|The management and configuration tools that you can use with Windows Defender AV are listed and described here.
[Evaluate Windows Defender Antivirus protection](evaluate-windows-defender-antivirus.md) | Evaluate the protection capabilities of Windows Defender Antivirus with a specialized evaluation guide and powershell script
[Deploy, manage updates, and report on Windows Defender Antivirus](deploy-manage-report-windows-defender-antivirus.md) | While traditional client deployment is not required for Windows Defender AV, you will need to enable the service. You can also manage how protection and product updates are applies, and receive reports from Configuration Manager, Intune, and with some security information and event monitoring (SIEM) tools
[Configure Windows Defender features](configure-windows-defender-antivirus-features.md) | Windows Defender AV has a large set of configurable features and options. You can configure options such as cloud-delivered protection, always-on monitoring and scanning, and how end-users can interact or override global policy settings
[Customize, initiate, and review the results of scans and remediation](customize-run-review-remediate-scans-windows-defender-antivirus.md) | You can set up scheduled scans, run on-demand scans, and configure how remediation works when threats are detected
[Troubleshoot Windows Defender in Windows 10](troubleshoot-windows-defender-antivirus.md)|Review event IDs and error codes in Windows Defender Antivirus to determine causes of problems and troubleshoot issues
[Reference topics for management and configuration tools](configuration-management-reference-windows-defender-antivirus.md)|The management and configuration tools that you can use with Windows Defender AV are listed and described here

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@ -40,7 +40,7 @@ See [Windows Defender Overview for Windows Server](https://technet.microsoft.com
While the functionality, configuration, and management is largely the same for Windows Defender AV either on Windows 10 or Windows Server 2016, there are a few key differences:
- In Windows Server 2016, [automatic exclusions](configure-exclusions-windows-defender-antivirus.md) are applied based on your defined Server Role.
- In Windows Server 2016, [automatic exclusions](configure-server-exclusions-windows-defender-antivirus.md) are applied based on your defined Server Role.
- In Windows Server 2016, [Windows Defender AV will not disable itself if you are running another antivirus product](windows-defender-antivirus-on-windows-server-2016.md#sysreq).

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@ -55,7 +55,7 @@ The app also includes the settings and status of:
## Comparison of settings and functions of the old app and the new app
All of the previous functions and settings from the Windows Defender app (in versions of Windows 10 before version 1703) are now found in the new Windows Defender Security app. Settings that were previously located in Windows Settings under **Update & security** > **Windows Defender** are also now in the new app.
All of the previous functions and settings from the Windows Defender app (in versions of Windows 10 before version 1703) are now found in the new Windows Defender Security Center app. Settings that were previously located in Windows Settings under **Update & security** > **Windows Defender** are also now in the new app.
The following diagrams compare the location of settings and functions between the old and new apps:
@ -74,7 +74,7 @@ Item | Windows 10, before version 1703 | Windows 10, version 1703 | Description
## Common tasks
This section describes how to perform some of the most common tasks when reviewing or interacting with the threat protection provided by Windows Defender Antivirus in the new Windows Defender Security app.
This section describes how to perform some of the most common tasks when reviewing or interacting with the threat protection provided by Windows Defender Antivirus in the new Windows Defender Security Center app.
> [!NOTE]
> If these settings are configured and deployed using Group Policy, the settings described in this section will be greyed-out and unavailable for use on individual endpoints. Changes made through a Group Policy Object must first be deployed to individual endpoints before the setting will be updated in Windows Settings. The [Configure end-user interaction with Windows Defender Antivirus](configure-end-user-interaction-windows-defender-antivirus.md) topic describes how local policy override settings can be configured.

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@ -17,7 +17,7 @@ Below is a list of some of the new and updated content that discusses Informatio
For more general info about Windows 10 features, see [Features available only on Windows 10](https://www.microsoft.com/windows/features). For info about previous versions of Windows 10, see [What's New in Windows 10](index.md).
>[!NOTE]
>For release dates and servicing options for each version, see [Windows 10 release information](https://technet.microsoft.com/en-us/windows/release-info). For a list of removed features, see [Features that are removed or deprecated in Windows 10 Creators Update](https://support.microsoft.com/help/4014193/features-that-are-removed-or-deprecated-in-windows-10-creators-update).
>Windows 10, version 1703 contains all fixes included in previous cumulative updates to Windows 10, version 1607. For info about each version, see [Windows 10 release information](https://technet.microsoft.com/en-us/windows/release-info). For a list of removed features, see [Features that are removed or deprecated in Windows 10 Creators Update](https://support.microsoft.com/help/4014193/features-that-are-removed-or-deprecated-in-windows-10-creators-update).
 
## Configuration