Microsoft confirmed that the KB5120998 August 2026 preview update resets mouse personalization settings on Windows 11, but only on non-English installations. The issue affects cursor and cursor animation settings, and Microsoft says impacted locales load default values instead of the user’s saved preferences. #KB5120998 #Windows11
Keypoints
- KB5120998 is an optional Windows 11 preview update for versions 25H2 and 24H2.
- The update can revert mouse cursor personalization settings after installation.
- Microsoft says the bug affects only non-English Windows 11 devices.
- In impacted locales, mouse settings fail to load and default settings are used instead.
- Microsoft has also been investigating other recent mouse-related Windows issues.