UPDATE 9/26:
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For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11, version 23H2, see its update history page.
Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.
This security update includes quality improvements. Key changes include:
For more information about security vulnerabilities, please refer to the Security Update Guide website and the September 2024 Security Updates.
Microsoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
Install this update
To install this update, use one of the following Windows and Microsoft release channels.
If you want to remove the LCU
To remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command: DISM /online /get-packages.
Running Windows Update Standalone Installer (wusa.exe) with the /uninstall switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.
File information
For a list of the files that are provided in this update, download the file information for cumulative update 5043076.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5043937) - versions 22621.4166 and 22631.4166.
support.microsoft.com
Check Windows Updates
UUP Dump:
64-bit ISO download:
ARM64 ISO download:
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KB5043145 Windows 11 Cumulative Update Preview Build 22621.4249 (22H2) and 22631.4249 (23H2) - Sept. 26
Microsoft Support: September 26, 2024 - KB5043145 (OS Builds 22621.4249 and 22631.4249) Preview 07/09/24---END OF SERVICE NOTICE--- IMPORTANT Home and Pro editions of Windows 11, version 22H2 will reach end of service on October 8, 2024. Until then, these editions will only receive security...
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Microsoft Support:
September 10, 2024 - KB5043076 (OS Builds 22621.4169 and 22631.4169)
07/09/24---END OF SERVICE NOTICE---
IMPORTANT Home and Pro editions of Windows 11, version 22H2 will reach end of service on October 8, 2024. Until then, these editions will only receive security updates. They will not receive non-security, preview updates. To continue receiving security and non-security updates after October 8, 2024, we recommend that you update to the latest version of Windows.
Note We will continue to support Enterprise and Education editions after October 8, 2024.
Windows 11 version 22H2 End of Servicing on October 08, 2024
On October 8, 2024, Windows 11, version 21H2 (Enterprise, Education, and IoT Enterprise editions) and Windows 11, version 22H2 (Home and Pro editions) will reach end of servicing. The upcoming October 2024 security update, to be released on October 8, 2024, will be the last update available for...
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For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11, version 23H2, see its update history page.
Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.
Highlights
- This update addresses security issues for your Windows operating system.
Improvements
Note: To view the list of addressed issues, click or tap the OS name to expand the collapsible section.
Windows 11, version 23H2
Important: Use EKB KB5027397 to update to Windows 11, version 23H2.This security update includes quality improvements. Key changes include:
- This build includes all the improvements in Windows 11, version 22H2.
- No additional issues are documented for this release.
Windows 11, version 22H2
This security update includes improvements that were a part of update KB5041587 (released August 27, 2024). Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.- [Windows Installer] When it repairs an application, the User Account Control (UAC) does not prompt for your credentials. After you install this update, the UAC will prompt for them. Because of this, you must update your automation scripts. Application owners must add the Shield icon. It indicates that the process requires full administrator access. To turn off the UAC prompt, set the HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Installer\DisableLUAInRepair registry value to 1. The changes in this update might affect automatic Windows Installer repairs; see Application Resiliency: Unlock the Hidden Features of Windows Installer.
For more information about security vulnerabilities, please refer to the Security Update Guide website and the September 2024 Security Updates.
Windows 11 servicing stack update (KB5043937) - 22621.4166 and 22631.4166
This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.Known issues in this update
| Applies to | Symptom | Workaround |
| All users | After installing this security update, you might face issues with booting Linux if you have enabled the dual-boot setup for Windows and Linux in your device. Resulting from this issue, your device might fail to boot Linux and show the error message “Verifying shim SBAT data failed: Security Policy Violation. Something has gone seriously wrong: SBAT self-check failed: Security Policy Violation.” The August 2024 Windows security update applies a Secure Boot Advanced Targeting (SBAT) setting to devices that run Windows to block old, vulnerable boot managers. This SBAT update will not be applied to devices where dual booting is detected. On some devices, the dual-boot detection did not detect some customized methods of dual-booting and applied the SBAT value when it should not have been applied. | Please refer to the workaround mentioned in Windows release health site for this issue. |
How to get this update
Before you install this updateMicrosoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
Install this update
To install this update, use one of the following Windows and Microsoft release channels.
| Available | Next Step |
| Yes (Windows Update) | None. This update will be downloaded and installed automatically from Windows Update and Microsoft Update. |
| Yes (MSU) | To get the standalone package for this update, go to the Microsoft Update Catalog website. |
If you want to remove the LCU
To remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command: DISM /online /get-packages.
Running Windows Update Standalone Installer (wusa.exe) with the /uninstall switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.
File information
For a list of the files that are provided in this update, download the file information for cumulative update 5043076.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5043937) - versions 22621.4166 and 22631.4166.
Source:
September 10, 2024—KB5043076 (OS Builds 22621.4169 and 22631.4169) - Microsoft Support
support.microsoft.com
Check Windows Updates
UUP Dump:
64-bit ISO download:
Select language for Windows 11, version 22H2 (22621.4169) amd64
Select language for Windows 11, version 22H2 (22621.4169) amd64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net
Select language for Windows 11, version 23H2 (22631.4169) amd64
Select language for Windows 11, version 23H2 (22631.4169) amd64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net
ARM64 ISO download:
Select language for Windows 11, version 22H2 (22621.4169) arm64
Select language for Windows 11, version 22H2 (22621.4169) arm64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net
Select language for Windows 11, version 23H2 (22631.4169) arm64
Select language for Windows 11, version 23H2 (22631.4169) arm64 on UUP dump. UUP dump lets you download Unified Update Platform files, like Windows Insider updates, directly from Windows Update.
uupdump.net
UUP Dump - Download Windows Insider ISO
UUP Dump is the most practical and easy way to get ISO images of any Insider Windows 10 or Windows 11 version, as soon as Microsoft has released a new build. UUP Dump creates a download configuration file according to your choices, downloads necessary files directly from Microsoft servers, and...
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