Applies ToWindows 11 version 24H2, all editions
You’re invited to try Microsoft 365 for free

Release Date:

11/02/2025

Version:

OS Build 26100.3194

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 24H2, see its update history page.    

Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.    

Important: Windows updates do not install Microsoft Store application updates. If you are an enterprise user, see Microsoft Store apps - Configuration Manager. If you are a consumer user, see Get updates for apps and games in Microsoft Store.

Highlights

  • This update addresses security issues for your Windows operating system. 

 Improvements

This security update includes improvements that were a part of update KB5050094 (released January 28, 2025). 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.

  • 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 February 2025 Security Updates.

Windows 11 servicing stack update (KB5052085)- 26100.3189

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. To learn more about SSUs, see Simplifying on-premises deployment of servicing stack updates.

Known issues in this update​​​​​​​

All users

All users

IT admins

How to get this update

Before you install 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

To install this update, use one of the following Windows and Microsoft release channels.

Available

Next Step

Yes

None. This update will be downloaded and installed automatically from Windows Update and Microsoft Update.

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 5051987

For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5052085) - version 26100.3189.  

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

You’re invited to try Microsoft 365 for free