August 8, 2023 – KB5029263 (OS Build 22621.2134)
Highlights
- This update addresses security issues for your Windows operating system.
Improvements
This security update includes improvements that were a part of update KB5028254 (released July 26, 2023). When you install this KB:
- This update makes miscellaneous security improvements to internal OS functionality. No additional issues were documented for this release.
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 August 2023 Security Updates.
Windows 11 servicing stack update – 22621.2061
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.
How to get this update
Before installing this update
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
| Release Channel | Available | Next Step |
| Windows Update and Microsoft Update | Yes | None. This update will be downloaded and installed automatically from Windows Update. |
| Windows Update for Business | Yes | None. This update will be downloaded and installed automatically from Windows Update in accordance with configured policies. |
| Microsoft Update Catalog | Yes | To get the standalone package for this update, go to the Microsoft Update Catalog website. |
| Windows Server Update Services (WSUS) | Yes | This update will automatically sync with WSUS if you configure Products and Classifications as follows:
Product: Windows 11 Classification: Security Updates |
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 5029263.
For a list of the files that are provided in the servicing stack update, download the file information for the SSU – version 22621.2061.
Source: https://support.microsoft.com/en-us/topic/august-8-2023-kb5029263-os-build-22621-2134-f8d4d3de-47c1-40e1-a2e6-97c2770ee2e8
KB5029263 MSU file from Microsoft Update Catalog
Download KB5029263 MSU for Windows 11 v22H2 64-bit (x64) – 371.5 MB
Download KB5029263 MSU for Windows 11 v22H2 ARM64 – 488.5 MB
