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Merge pull request #4492 from MicrosoftDocs/deniseb-4745891

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update to antivirus on Windows Server content
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Tina Burden 2021-01-04 09:50:53 -08:00 committed by GitHub
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windows/security/threat-protection/microsoft-defender-antivirus/microsoft-defender-antivirus-compatibility.md
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@ -11,9 +11,9 @@ ms.localizationpriority: medium
author: denisebmsft
ms.author: deniseb
ms.custom: nextgen
ms.reviewer: pahuijbr
ms.reviewer: pahuijbr, shwjha
manager: dansimp
ms.date: 12/20/2020
ms.date: 01/04/2021
---
# Microsoft Defender Antivirus compatibility
@ -47,7 +47,7 @@ The following table summarizes what happens with Microsoft Defender Antivirus wh
| Windows Server 2016 or 2019 | Microsoft Defender Antivirus | Yes | Active mode |
| Windows Server 2016 or 2019 | Microsoft Defender Antivirus | No | Active mode |
(<a id="fn1">1</a>) On Windows Server 2016 or 2019, Microsoft Defender Antivirus does not enter passive or disabled mode automatically when you install non-Microsoft antivirus product. In those cases, [disable Microsoft Defender Antivirus, or set it to passive mode](microsoft-defender-antivirus-on-windows-server-2016.md#need-to-uninstall-microsoft-defender-antivirus) to prevent problems caused by having multiple antivirus products installed on a server.
(<a id="fn1">1</a>) On Windows Server 2016 or 2019, Microsoft Defender Antivirus does not enter passive mode automatically when you install a non-Microsoft antivirus product. In those cases, [set Microsoft Defender Antivirus to passive mode](microsoft-defender-antivirus-on-windows-server-2016.md#need-to-set-microsoft-defender-antivirus-to-passive-mode) to prevent problems caused by having multiple antivirus products installed on a server.
If you are using Windows Server, version 1803 or Windows Server 2019, you set Microsoft Defender Antivirus to passive mode by setting this registry key:
- Path: `HKLM\SOFTWARE\Policies\Microsoft\Windows Advanced Threat Protection`

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windows/security/threat-protection/microsoft-defender-antivirus/microsoft-defender-antivirus-on-windows-server-2016.md
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@ -10,8 +10,8 @@ ms.sitesec: library
ms.localizationpriority: medium
author: denisebmsft
ms.author: deniseb
ms.date: 12/17/2020
ms.reviewer: pahuijbr
ms.date: 01/04/2021
ms.reviewer: pahuijbr, shwjha
manager: dansimp
---
@ -34,19 +34,13 @@ While the functionality, configuration, and management are largely the same for
The process of setting up and running Microsoft Defender Antivirus on a server platform includes several steps:
1. [Enable the interface](#enable-the-user-interface-on-windows-server-2016-or-2019)
2. [Install Microsoft Defender Antivirus](#install-microsoft-defender-antivirus-on-windows-server-2016-or-2019)
2. [Verify Microsoft Defender Antivirus is running](#verify-microsoft-defender-antivirus-is-running)
3. [Update your antimalware Security intelligence](#update-antimalware-security-intelligence)
4. (As needed) [Submit samples](#submit-samples)
5. (As needed) [Configure automatic exclusions](#configure-automatic-exclusions)
6. (Only if necessary) [Uninstall Microsoft Defender Antivirus](#need-to-uninstall-microsoft-defender-antivirus)
1. [Enable the interface](#enable-the-user-interface-on-windows-server-2016-or-2019).
2. [Install Microsoft Defender Antivirus](#install-microsoft-defender-antivirus-on-windows-server-2016-or-2019).
3. [Verify Microsoft Defender Antivirus is running](#verify-microsoft-defender-antivirus-is-running).
4. [Update your antimalware Security intelligence](#update-antimalware-security-intelligence).
5. (As needed) [Submit samples](#submit-samples).
6. (As needed) [Configure automatic exclusions](#configure-automatic-exclusions).
7. (Only if necessary) [Set Microsoft Defender Antivirus to passive mode](#need-to-set-microsoft-defender-antivirus-to-passive-mode).
## Enable the user interface on Windows Server 2016 or 2019
@ -171,11 +165,11 @@ To help ensure security and performance, certain exclusions are automatically ad
See [Configure exclusions in Microsoft Defender Antivirus on Windows Server](configure-server-exclusions-microsoft-defender-antivirus.md).
## Need to uninstall Microsoft Defender Antivirus?
## Need to set Microsoft Defender Antivirus to passive mode?
If you are using a non-Microsoft antivirus product as your primary antivirus solution, you can either disable Microsoft Defender Antivirus, or set it to passive mode, as described in the following procedures.
If you are using a non-Microsoft antivirus product as your primary antivirus solution, set Microsoft Defender Antivirus to passive mode.
### Set Microsoft Defender Antivirus to passive mode
### Set Microsoft Defender Antivirus to passive mode using a registry key
If you are using Windows Server, version 1803 or Windows Server 2019, you can set Microsoft Defender Antivirus to passive mode by setting the following registry key:
- Path: `HKLM\SOFTWARE\Policies\Microsoft\Windows Advanced Threat Protection`
@ -193,17 +187,6 @@ If you are using Windows Server, version 1803 or Windows Server 2019, you can se
Microsoft Defender Antivirus will still run normally without the user interface, but the user interface cannot be enabled if you disable the core **Windows Defender** feature.
### Disable Microsoft Defender Antivirus using PowerShell
>[!NOTE]
>You can't uninstall the Windows Security app, but you can disable the interface with these instructions.
The following PowerShell cmdlet uninstalls Microsoft Defender Antivirus on Windows Server 2016 or 2019:
```PowerShell
Uninstall-WindowsFeature -Name Windows-Defender
```
### Turn off the Microsoft Defender Antivirus user interface using PowerShell
To turn off the Microsoft Defender Antivirus GUI, use the following PowerShell cmdlet: