MC674927 – Take action: September 2023 security update is now available Icon

check before: 2023-09-26




Windows Desktop, World tenant


Change type:

Admin impact



The September 2023 security update 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. To learn more about the different types of monthly quality updates, see Windows monthly updates explained. To be informed about the latest updates and releases, follow us on X (formerly Twitter) @WindowsUpdate.

Highlights for the Windows 11 update:
This update removes a blank menu item from the Sticky Keys menu. This issue occurs after you install KB5029351.
This update addresses an issue that affects authentication. Using a smart card to join or rejoin a computer to an Active Directory domain might fail. This occurs after you install Windows updates dated November 2022 or later.
This security update includes improvements that were a part of update KB5029351 (released August 22, 2023).

Short on time? Watch our short Windows 11 update release notes video for this month's tips.

IMPORTANT The September 2023 non-security preview update will be the last optional release for Windows 11, version 21H2. The October 2023 security update will be the last security release for some editions of Windows 11, version 21H2. Windows 11, version 22H2 will continue to receive security and optional releases.

For instructions on how to install this update for your operating system, see the KB for your OS listed below:
Windows 11, version 22H2: KB5030219
Windows 11, version 21H2: KB5030217
Windows 10, version 22H2: KB5030211
Windows 10, version 21H2: KB5030211
Windows 10 Enterprise LTSC 2019 and Windows Server 2019: KB5030214
Windows 10 LTSB 2016 and Windows Server 2016: KB5030213
Windows 10 LTSB 2015: KB5030220
Windows Server 2022: KB5030216
Windows Server 2012 R2: Monthly Rollup: KB5030269 / Security Only: KB5030287
Windows Server 2012: Monthly Rollup: KB5030278 / Security Only: KB5030279
Windows Server 2008 R2 Service Pack 1: Monthly Rollup: KB5030265 / Security Only: KB5030261
Windows Server 2008 Service Pack 2: Monthly Rollup: KB5030271 / Security Only: KB5030286

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