
Microsoft patches explorer.exe reliability after sign-in in Windows 11 May 2026 Update
Microsoft's May 2026 Update for Windows 11 (KB5089549) patches reliability issues in explorer.exe that caused taskbar freezes, unresponsive right-clicks, sign-in delays, and non-responsive Task View, and also improves startup-app launch timing and system-tray performance; changes may not show up for all devices immediately.

