A recent Windows 11 update, KB5066835, released in October 2025, has caused a serious problem in the system’s recovery environment. Many users report that USB keyboards and mice stop working when using the Windows Recovery Environment (WinRE), making it impossible to access essential troubleshooting menus.
WinRE is designed to help users fix startup failures and perform system repairs. However, with USB devices becoming unresponsive, modern peripherals cannot interact with recovery tools. Despite this issue, USB keyboards and mice continue to work normally once Windows 11 fully boots.
Microsoft has confirmed the problem and stated that a fix is in development. Currently, only systems using legacy PS/2 keyboards or mice remain functional within the recovery environment. The glitch is concerning because WinRE is the default fallback for users facing startup or crash issues. Without input functionality, users risk being locked out of critical system tools.
The company has updated its support documentation to reflect the issue. Microsoft recommends that users create external recovery media as a precaution. It also advised users to back up important data and consider postponing the KB5066835 update if it has not yet been installed.
Experts warn that users relying solely on USB peripherals should be cautious. Until the fix is released, systems with PS/2 devices or external recovery drives are the safest option for troubleshooting in Windows 11.
The fix for the KB5066835 update is expected to roll out soon, restoring full functionality to USB input devices within the Windows Recovery Environment. Users should monitor official Microsoft channels for announcements and avoid attempting repairs without backup plans.
In other related news also read Windows 11 getting a huge upgrade
This issue highlights the importance of cautious updating and preparation for recovery scenarios in Windows 11 systems, especially for users with modern USB hardware.
