MC357684 – Take action: April 2022 security update available for all supported versions of Windows Icon

check before: 2022-04-12




Windows Desktop, World tenant


Change type:

Admin impact



The April 2022 security update release, referred to as our "B" release, is now available for Windows 11 and all supported versions of Windows 10. We recommend that you install these updates promptly. For more information about the contents of this update, see the release notes, which are easily accessible from the Windows 11 and Windows 10 update history pages. For instructions on how to install this update on your home device, check this article. To learn more about the different types of monthly quality updates, see our Windows quality updates primer.

Highlights for the Windows 11 update:

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.
This update contains miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.

Short on time? Watch our short monthly release notes video for a summary of this month’s Windows 11 updates.

For instructions on how to install this update for your operating system, see the KB for your OS listed below:

Windows 11, version 21H2 (original release): KB5012592
Windows 10, version 21H2: KB5012599
Windows 10, version 21H1: KB5012599
Windows 10, version 20H2, Windows Server, version 20H2: KB5012599
Windows 10, version 1909, Windows Server, version 1909: KB5012591
Windows 10, version 1809, Windows Server, version 1809, Windows Server 2019: KB5012647
Windows 10, version 1607, Windows Server 2016: KB5012596
Windows 10, version 1507: KB5012653
Windows 8.1, Windows Server 2012 R2: Monthly Rollup: KB5012670 / Security Only: KB5012639
Windows Server 2012: Monthly Rollup: KB5012650 / Security Only: KB5012666
Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1: Monthly Rollup: KB5012626 / Security Only: KB5012649
Windows Server 2008 Service Pack 2: Monthly Rollup: KB5012658 / Security Only: KB5012632

Change Category:


Release Phase:



the free basic plan is required to see all details. Sign up here

A plan is required to see all the changed details. If you are already a customer, choose login.
If you are new to please choose a plan.

Login to your account

Welcome Back, We Missed You!