At a glance · External product information
Windows 11 26H1: October’s patch addresses mouse stutter and AI components
Microsoft includes a fix for mouse input in some games. The update targets 26H1, with AI components limited to Copilot+ devices.
- Target version
- Windows 11 26H1
- Bulletin
- KB5127646 · 13 October 2026
- AI components
- Limited to Copilot+ devices
Original bulletins checked on 14 October: 26H1 and Copilot+ component scopes distinguished; fixes attributed to Microsoft, without our own performance test.
Sources and checks · 3
Links point to sources. They are not endorsements or sponsorships.
- [1] Windows11 26H1 · actualización13oct · support.microsoft.comsupport · Checked on 14 October 2026
- [2] Windows11 26H1 · actualización13oct · learn.microsoft.comdocumentation · Checked on 14 October 2026
- [3] Windows11 26H1 · actualización13oct · support.microsoft.comsupport · Checked on 14 October 2026