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 affects localhost. WinRE is a crucial feature of the OS, allowing users to recover the operating system when Windows refuses to boot or when a BSOD (Blue/Black screen of Death error) occurs.
Microsoft has confirmed the findings, acknowledging the bug's impact on WinRE functionality.
Author's summary: Microsoft confirms Windows 11 update breaks WinRE input.