After installing update KB5066835, USB keyboards and mice no longer work in Windows Recovery. Microsoft is working on a fix.

A mandatory Windows 11 security update is wreaking havoc on some systems, and Microsoft is working on a hotfix to reverse the ...

Microsoft has since indicated that a fix is on the way in a subsequent update for issues with Windows 11 KB5066835. The ...

Windows 11's October Update has broken USB keyboard and mouse support within the Windows Recovery Environment. Great timing, ...

Microsoft has issued a warning to all Windows 11 25H2 and 24H2 users about USB mouse and keyboard as the recent KB5066835 ...

Microsoft has released a new emergency OOB update under KB5070773 which fixes the bug that made USB mouse and keyboard ...

As per Microsoft's Win 11 25H2 known issues page, update KB5066835 has stopped USB devices, like keyboard and mice, from ...

Microsoft has released an emergency update to fix the Windows Recovery Environment (WinRE), which became unusable on systems ...

Microsoft rolls out emergency KB5070773 update to fix broken USB input in Windows 11 Recovery after October Patch Tuesday.

Microsoft has confirmed a bug that disables USB mice and keyboards in the Windows Recovery Environment (WinRE) after ...

Starting with the October 2025 update (KB5066835) for Windows 11 25H2 / 24H2, Microsoft has started enabling the updated Prism emulation features for Windows on ARM. This includes new emulation ...

These problems present for users who were running Windows 11 version 24H2 or 25H2 before deploying the patch. Making the matter worse, KB5066835 is a security update that is installed automatically, ...