mouse-stutter

Windows 11 26H2 mouse stutter in games confirmed and fixed in KB5127648

Microsoft has confirmed and patched a Windows 11 bug causing mouse stutter in games. The fix is in KB5127648, released October 13, 2026, for Windows 11 24H2, 25H2, and 26H2. It does not solve all mouse issues—just one specific OS-level regression.