The October 14, 2025 update for Windows 11 and Windows Server 2025 caused a significant issue with the Windows Recovery Environment (WinRE). The update, identified as KB5066835, prevents USB devices like keyboards and mice from functioning properly within WinRE, although they continue to work inside Windows.
Specific Impact and Scope
The glitch affects versions Windows 11 25H2, 24H2, and Windows Server 2025. This means users cannot navigate recovery options with USB input devices. Microsoft acknowledges the bug and intends to release a fix shortly. Legacy PS/2 devices remain unaffected, providing a temporary alternative for navigation.
- Update responsible: KB5066835
- Affected systems: Windows 11 25H2, 24H2, Server 2025
- USB failure specific to WinRE
- Fix expected in upcoming days
- Workaround: Use PS/2 devices or uninstall update
Additional Issues and Solutions
The update has caused other technical problems, including IIS-hosted websites failing to load and errors with File Explorer when accessing network or cloud files. Microsoft is working on solutions for these bugs as part of future updates.
Users experiencing USB failures in WinRE should consider using alternative PS/2 devices if available, or uninstalling the problematic update via Settings. Waiting for Microsoft's fix is another option. It is clear Microsoft is prioritizing resolving this issue quickly.
