Microsoft fixed a known issue in Windows 11 KB5120998 that reset mouse personalization settings on some non-English systems, with affected users unable to restore them even after uninstalling the update. The bug was resolved in the KB5124008 September 2026 cumulative update, and Microsoft recommends installing the latest security update for Windows 11 versions 24H2 and 25H2. #Microsoft #Windows11 #KB5120998 #KB5124008
Keypoints
- KB5120998 caused mouse cursor settings to reset on some Windows 11 systems.
- The issue mainly affected non-English Windows installations.
- Users could not restore the settings even after uninstalling the update.
- Microsoft fixed the problem in KB5124008 released on September 8, 2026.
- The company also recently addressed other Windows mouse-related bugs.