Microsoft has confirmed that the Windows 11 October 2025 Update breaks WinRE (Windows Recovery Environment) input, rendering it useless due to a bug that blocks mouse or keyboard functionality.
This issue, originating from Windows 11 KB5066835, also causes problems with localhost. WinRE is a critical feature of the OS, allowing users to recover the operating system when Windows fails to boot.
Microsoft has confirmed the findings, which means the update has significant implications for system recovery.
Author's summary: Microsoft confirms Windows 11 update breaks WinRE input.