Windows 11 391 Published by

Microsoft has published KB5033369 (OS Build 22000.2652) for Windows 11 21H2.

December 12, 2023—KB5033369 (OS Build 22000.2652)


  • This update addresses security issues for your Windows operating system.     


This security update includes improvements. When you install this KB:

  • This update affects the Netherlands time zone. It adds the recent man-made landmass outside of Rotterdam to the shape files.

  • This update affects Microsoft Defender for Endpoint (MDE). It enables Conditional Access (CA) scenarios.

If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.

For more information about security vulnerabilities, please refer to the  Security Update Guide website and the  December 2023 Security Updates.

December 12, 2023—KB5033369 (OS Build 22000.2652) - Microsoft Support