Windows 11 KB5089573 update released with performance improvements
Windows 11 KB5089573 update released with performance improvements
Publish Date: 2026-05-27 04:33:46
Source Domain: www.bleepingcomputer.com
Microsoft’s Optional KB5089573 Preview Update for Windows 11
Microsoft has released the KB5089573 preview cumulative update for Windows 11 versions 25H2 and 24H2, delivering 30 changes focused on performance and reliability enhancements. This optional update is part of Microsoft’s monthly non-security preview schedule, meant to let IT admins and users test new features and fixes ahead of a broader rollout during next month’s Patch Tuesday. Unlike regular cumulative updates accompanying the monthly security patch, this update does not include security updates but includes improvements to Windows Hello, enhancing sign-in experience with the default being Windows Hello face or fingerprint.
Key changes also involve accelerating app launch and enhancing core shell experiences like Start menu, Search, and Action Center. The update aims to improve reliability in File Explorer, on the sign-in and lock screens, and with theme changes and touchscreen gestures. KB5089573 is optional and can be installed via the Microsoft Update Catalog or by checking for updates in the Windows Update segment within Settings.
Key Points:
- KB5089573 includes 30 performance and reliability improvements for Windows 11 versions 25H2 and 24H2.
- The update is part of a non-security monthly preview schedule, not mandatory, and does not include security patches.
- The update improves sign-in behavior relying more on Windows Hello and performance for core shell experiences.
- Other enhancements include reliability fixes in File Explorer and with theme changes in Settings.
- Installable via the Microsoft Update Catalog or Windows Update’s ‘Check for Updates’ option.
