Microsoft has released Windows 11 KB5124008 and KB5122880 as mandatory cumulative updates for 25H2/24H2 and 23H2, delivering September 2026 Patch Tuesday fixes for 1,000 vulnerabilities along with bug fixes and new features. The update adds taskbar, Start menu, Windows Search, File Explorer, and system improvements, and can be installed through Windows Update or the Microsoft Update Catalog. #KB5124008 #KB5122880 #Windows11 #MicrosoftUpdateCatalog
Keypoints
- Microsoft released mandatory September 2026 Patch Tuesday updates for Windows 11.
- KB5124008 and KB5122880 fix 1,000 vulnerabilities and several bugs.
- The update adds a movable and smaller taskbar, plus expanded taskbar settings.
- Start menu and Windows Search now include more personalization and clearer results.
- The release also improves File Explorer, Windows Update behavior, Autopilot, and Administrator protection.