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Microsoft Defender for Endpoint Blog

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Defending Windows Server 2012 R2 and 2016

Microsoft

Oct 07, 2021

Update: The modern, unified Microsoft Defender for Endpoint solution for Windows Server 2012 R2 and Windows Server 2016 is now generally available as of April 11th, 2022. Ensure you apply the l...

Updated Oct 08, 2022

Version 21.0

microsoft defender for endpoint

Paul_Huijbregts

Microsoft

Joined April 06, 2017

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Microsoft Defender for Endpoint Blog

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Paul_Huijbregts

Microsoft

Nov 12, 2021

david1972980 that KB is the platform update that applies to all Defender Antivirus supported OS (including 10, 2016, 2019 and 2012 R2 now) - you will want to have this working regardless. You can use the link I provided to apply the update manually but you will want this to flow on a monthly basis. Suggest you troubleshoot your WSUS setup and reach out to support if you keep having issues.