Microsoft has released the KB5063709 cumulative update for Windows 10 versions 22H2 and 21H2, addressing a critical bug that prevented users from enrolling in extended security updates. This mandatory update includes Microsoft's July 2025 Patch Tuesday security updates, resolving one zero-day vulnerability and 136 other flaws. After installation, Windows 10 version 22H2 will be upgraded to build 19045.6216, and version 21H2 will transition to build 19044.6216. Users can manually check for updates in Settings under Windows Update, and they can also download the update from the Microsoft Update Catalog.
Key changes and fixes in the KB5063709 update include:
- Fixed an issue affecting the Windows 10 Extended Security Updates enrollment wizard.
- Updated enhancements to Country and Operator Settings Asset profiles.
- Introduced the capability to deploy SKUSiPolicy VBS Anti-rollback protections via Secure Boot.
- Fixed stability issues on certain devices following the May 2025 security update.
- Fixed issues with the Microsoft Changjie Input Method, emoji panel search functionality, and phonetic input methods for Hindi and Marathi keyboards.
Microsoft has confirmed there are no known issues associated with this update.