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@ -13,7 +13,7 @@ ms.author: deniseb
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ms.custom: nextgen
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ms.reviewer:
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manager: dansimp
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ms.date: 11/06/2020
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ms.date: 12/05/2020
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---
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# Manage Microsoft Defender Antivirus updates and apply baselines
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@ -32,10 +32,9 @@ There are two types of updates related to keeping Microsoft Defender Antivirus u
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> [!IMPORTANT]
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> Keeping Microsoft Defender Antivirus up to date is critical to assure your devices have the latest technology and features needed to protect against new malware and attack techniques.
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> This also applies to devices where Microsoft Defender Antivirus is running in [passive mode](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-antivirus/microsoft-defender-antivirus-compatibility).
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> Make sure to update your antivirus protection even if Microsoft Defender Antivirus is running in [passive mode](https://docs.microsoft.com/windows/security/threat-protection/microsoft-defender-antivirus/microsoft-defender-antivirus-compatibility).
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>
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> You can use the below URL to find out what are the current versions:
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> [https://www.microsoft.com/security/encyclopedia/adlpackages.aspx?action=info](https://www.microsoft.com/security/encyclopedia/adlpackages.aspx?action=info)
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> To see the most current engine, platform, and signature date, visit the [Microsoft security encyclopedia](https://www.microsoft.com/security/encyclopedia/adlpackages.aspx?action=info).
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## Security intelligence updates
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@ -79,6 +78,22 @@ All our updates contain
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<details>
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<summary> November-2020 (Platform: 4.18.2011.6 | Engine: 1.1.17700.4)</summary>
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 Security intelligence update version: **1.327.1854.0**
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 Released: **December 03, 2020**
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 Platform: **4.18.2011.6**
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 Engine: **1.1.17700.4**
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 Support phase: **Security and Critical Updates**
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### What's new
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- Improved SmartScreen status support logging
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- Apply CPU throttling policy to manually initiated scans
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### Known Issues
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No known issues
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<br/>
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</details><details>
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<summary> October-2020 (Platform: 4.18.2010.7 | Engine: 1.1.17600.5)</summary>
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 Security intelligence update version: **1.327.7.0**
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@ -350,12 +365,73 @@ The below table provides the Microsoft Defender Antivirus platform and engine ve
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Windows 10 release info: [Windows lifecycle fact sheet](https://support.microsoft.com/help/13853/windows-lifecycle-fact-sheet).
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## Updates for Deployment Image Servicing and Management (DISM)
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We recommend updating your Windows 10 (Enterprise, Pro, and Home editions), Windows Server 2019, and Windows Server 2016 OS installation images with the latest antivirus and antimalware updates. Keeping your OS installation images up to date helps avoid a gap in protection. For more information, see [Microsoft Defender update for Windows operating system installation images](https://support.microsoft.com/help/4568292/defender-update-for-windows-operating-system-installation-images).
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<details>
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<summary>1.1.2012.01</summary>
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 Package version: **1.1.2012.01**
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 Platform version: **4.18.2010.7**
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 Engine version: **1.17600.5**
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 Signature version: **1.327.1991.0**
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### Fixes
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- None
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### Additional information
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- None
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<br/>
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</details><details>
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<summary>1.1.2011.02</summary>
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 Package version: **1.1.2011.02**
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 Platform version: **4.18.2010.7**
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 Engine version: **1.17600.5**
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 Signature version: **1.327.658.0**
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### Fixes
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- None
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### Additional information
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- Refreshed Microsoft Defender Antivirus signatures
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<br/>
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</details><details>
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<summary>1.1.2011.01</summary>
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 Package version: **1.1.2011.01**
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 Platform version: **4.18.2009.7**
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 Engine version: **1.17600.5**
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 Signature version: **1.327.344.0**
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### Fixes
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- None
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### Additional information
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- None
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<br/>
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</details><details>
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<summary>1.1.2009.10</summary>
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 Package version: **1.1.2011.01**
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 Platform version: **4.18.2008.9**
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 Engine version: **1.17400.5**
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 Signature version: **1.327.2216.0**
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### Fixes
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- None
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### Additional information
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- Added support for Windows 10 RS1 or later OS install images.
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<br/>
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</details>
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## See also
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| Article | Description |
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|:---|:---|
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|[Microsoft Defender update for Windows operating system installation images](https://support.microsoft.com/help/4568292/defender-update-for-windows-operating-system-installation-images) | Review antimalware update packages for your OS installation images (WIM and VHD files). This feature supports OS installation images for Windows 10 (Enterprise, Pro, and Home editions), Windows Server 2019, and Windows Server 2016. |
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|[Microsoft Defender update for Windows operating system installation images](https://support.microsoft.com/help/4568292/defender-update-for-windows-operating-system-installation-images) | Review antimalware update packages for your OS installation images (WIM and VHD files). Get Microsoft Defender Antivirus updates for Windows 10 (Enterprise, Pro, and Home editions), Windows Server 2019, and Windows Server 2016 installation images. |
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|[Manage how protection updates are downloaded and applied](manage-protection-updates-microsoft-defender-antivirus.md) | Protection updates can be delivered through a number of sources. |
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|[Manage when protection updates should be downloaded and applied](manage-protection-update-schedule-microsoft-defender-antivirus.md) | You can schedule when protection updates should be downloaded. |
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|[Manage updates for endpoints that are out of date](manage-outdated-endpoints-microsoft-defender-antivirus.md) | If an endpoint misses an update or scheduled scan, you can force an update or scan the next time a user signs in. |
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