Microsoft drops emergency Windows 11 update, fixing USB input bug

Microsoft has released two emergency updates, KB5070762 and KB5070773, to address a serious issue in Windows 11 version 24H2 and 25H2 where installing the October update (KB5066835) can cause USB keyboards, mice, and other input devices to fail in the Windows Recovery Environment (WinRE). The problem affected systems running Windows 11 24H2 or 25H2, as well as Windows Server 2025, leaving users unable to repair their PCs or reset Windows due to the lack of USB input functionality. Microsoft's two updates, the Safe OS Dynamic Update (KB5070762) and a supplementary cumulative update (KB5070773), directly fix the faulty driver initialization issue that caused the problem. The updates ensure that USB input devices work correctly in the recovery environment, without making any other changes to the system or requiring a reboot. Microsoft recommends that companies promptly install these emergency updates to avoid potential support issues during system recovery.