Are the mouse and keyboard not working in Windows 11? Try disabling fast startup, scan for malware, update driver, amongst other fixes.

Microsoft says a known issue that reverts mouse settings after installing the KB5120998 August 2026 preview update affects only non-English Windows 11 systems.

Whether it's opening apps, scrolling through a web page, playing our favorite video games, or selecting a bunch of items on the screen, a perfectly functional mouse does it all — unless it stops ...

Microsoft confirms KB5120998 Windows 11 bugs resetting mouse customization and desktop backgrounds after August updates, affecting some users.