The September 2022 security update release, referred to as “B” release, is now available for Windows 11 and all supported versions of Windows 10. Microsoft 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 the Update Windows article. To learn more about the different types of monthly quality updates, see our Windows quality updates primer. To be informed about the latest updates and releases, follow us on Twitter @WindowsUpdate.
Improvements for the Windows 11 update
- Addresses security issues for your Windows operating system.
- Addresses a known issue that affects Microsoft accounts (MSA). The web dialog that you use to sign in or sign out might not appear.
- This update contains miscellaneous security improvements to internal OS functionality.
- This update makes quality improvements to the servicing stack, which is the component that installs Windows updates.
Short on time? Watch our short monthly release notes video for a summary of this month’s Windows 11 update.
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): KB5017328
Windows 10, version 21H2: KB5017308
Windows 10, version 21H1: KB5017308
Windows 10, version 1809, Windows Server, version 1809, Windows Server 2019: KB5017315
Windows 10, version 1607, Windows Server 2016: KB5017305
Windows 10, version 1507: KB5017327
Windows 8.1, Windows Server 2012 R2: Monthly Rollup: KB5017367/ Security Only: KB5017365
Windows Server 2012: Monthly Rollup: KB5017370/ Security Only: KB5017377
Windows 7 Service Pack 1, Windows Server 2008 R2 Service Pack 1: Monthly Rollup: KB5017361 / Security Only: KB5017373
Windows Server 2008 Service Pack 2: Monthly Rollup: KB5017358 / Security Only: KB5017371
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Message ID: MC429887
Published: 14 September 2022
Updated: 15 September 2022
Platform: Windows Desktop, World tenant
