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@ -11,7 +11,7 @@ author: denisebmsft
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ms.author: deniseb
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ms.custom: nextgen
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audience: ITPro
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ms.date: 02/01/2021
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ms.date: 02/03/2021
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ms.reviewer:
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manager: dansimp
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ms.technology: mde
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@ -112,21 +112,13 @@ For System Center 2012 Configuration Manager, see [How to Deploy Potentially Unw
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#### Use Group Policy to configure PUA protection
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1. Download and install [Administrative Templates (.admx) for Windows 10 October 2020 Update (20H2)](https://www.microsoft.com/download/details.aspx?id=102157)
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2. On your Group Policy management computer, open the [Group Policy Management Console](https://docs.microsoft.com/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/cc731212(v=ws.11)).
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3. Select the Group Policy Object you want to configure, and then choose **Edit**.
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4. In the **Group Policy Management Editor**, go to **Computer configuration** and select **Administrative templates**.
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5. Expand the tree to **Windows Components** > **Microsoft Defender Antivirus**.
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6. Double-click **Configure detection for potentially unwanted applications**.
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7. Select **Enabled** to enable PUA protection.
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8. In **Options**, select **Block** to block potentially unwanted applications, or select **Audit Mode** to test how the setting works in your environment. Select **OK**.
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9. Deploy your Group Policy object as you usually do.
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#### Use PowerShell cmdlets to configure PUA protection
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@ -134,19 +126,17 @@ For System Center 2012 Configuration Manager, see [How to Deploy Potentially Unw
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##### To enable PUA protection
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```PowerShell
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Set-MpPreference -PUAProtection Enabled
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```
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Setting the value for this cmdlet to `Enabled` turns the feature on if it has been disabled.
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##### To set PUA protection to audit mode
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```PowerShell
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Set-MpPreference -PUAProtection AuditMode
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```
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Setting `AuditMode` detects PUAs without blocking them.
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##### To disable PUA protection
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@ -154,10 +144,9 @@ Setting `AuditMode` detects PUAs without blocking them.
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We recommend keeping PUA protection turned on. However, you can turn it off by using the following cmdlet:
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```PowerShell
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Set-MpPreference -PUAProtection Disabled
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```
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Setting the value for this cmdlet to `Disabled` turns the feature off if it has been enabled.
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See [Use PowerShell cmdlets to configure and run Microsoft Defender Antivirus](use-powershell-cmdlets-microsoft-defender-antivirus.md) and [Defender cmdlets](https://docs.microsoft.com/powershell/module/defender/index) for more information on how to use PowerShell with Microsoft Defender Antivirus.
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@ -167,7 +156,6 @@ See [Use PowerShell cmdlets to configure and run Microsoft Defender Antivirus](u
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PUA events are reported in the Windows Event Viewer, but not in Microsoft Endpoint Manager or in Intune. You can also use the `Get-MpThreat` cmdlet to view threats that Microsoft Defender Antivirus handled. Here's an example:
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```console
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CategoryID : 27
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DidThreatExecute : False
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IsActive : False
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@ -1,5 +1,5 @@
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---
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title: Prevent ransomware and threats from encrypting and changing files
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title: Protect important folders from ransomware from encrypting your files with controlled folder access
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description: Files in default folders can be protected from being changed by malicious apps. Prevent ransomware from encrypting your files.
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keywords: controlled folder access, windows 10, windows defender, ransomware, protect, files, folders
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search.product: eADQiWindows 10XVcnh
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@ -11,7 +11,7 @@ ms.localizationpriority: medium
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author: denisebmsft
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ms.author: deniseb
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audience: ITPro
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ms.date: 12/17/2020
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ms.date: 02/03/2021
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ms.reviewer: v-maave
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manager: dansimp
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ms.custom: asr
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@ -35,6 +35,9 @@ Controlled folder access helps protect your valuable data from malicious apps an
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Controlled folder access works best with [Microsoft Defender for Endpoint](../microsoft-defender-atp/microsoft-defender-advanced-threat-protection.md), which gives you detailed reporting into controlled folder access events and blocks as part of the usual [alert investigation scenarios](../microsoft-defender-atp/investigate-alerts.md).
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> [!TIP]
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> Controlled folder access blocks don't generate alerts in the [Alerts queue](../microsoft-defender-atp/alerts-queue.md). However, you can view information about controlled folder access blocks in the [device timeline view](../microsoft-defender-atp/investigate-machines.md), while using [advanced hunting](../microsoft-defender-atp/advanced-hunting-overview.md), or with [custom detection rules](../microsoft-defender-atp/custom-detection-rules.md).
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## How does controlled folder access work?
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Controlled folder access works by only allowing trusted apps to access protected folders. Protected folders are specified when controlled folder access is configured. Typically, commonly used folders, such as those used for documents, pictures, downloads, and so on, are included in the list of controlled folders.
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@ -117,17 +120,11 @@ The following table shows events related to controlled folder access:
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You can use the Windows Security app to view the list of folders that are protected by controlled folder access.
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1. On your Windows 10 device, open the Windows Security app.
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2. Select **Virus & threat protection**.
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3. Under **Ransomware protection**, select **Manage ransomware protection**.
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4. If controlled folder access is turned off, you'll need to turn it on. Select **protected folders**.
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5. Do one of the following steps:
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- To add a folder, select **+ Add a protected folder**.
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- To remove a folder, select it, and then select **Remove**.
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> [!NOTE]
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