Microsoft Releases Urgent Update for All Windows 11 Users

Key Takeaways

1. Microsoft issued an urgent update (KB5070773) to fix USB keyboard and mouse issues in Windows Recovery Environment (WinRE) after the October 2025 security update (KB5066835) disabled them.

2. The problem affected Windows 11 versions 24H2, 25H2, and Windows Server 2025, limiting users’ ability to troubleshoot issues in WinRE.

3. Users can obtain the fix via Windows Update or download it directly from the Microsoft Update Catalog.

4. The issue was specific to the recovery environment and did not impact the normal functioning of USB devices in regular Windows sessions.

5. Microsoft’s quick response aims to prevent future interruptions to recovery tools and encourages users who rely on WinRE to update immediately.

Microsoft has issued an urgent update to address a situation that left numerous Windows 11 users unable to utilize their USB keyboards and mice in the Windows Recovery Environment. This problem surfaced after the installation of the October 2025 security update, KB5066835, which accidentally disabled USB input devices while trying to access WinRE. The Windows Recovery Environment is essential for troubleshooting when the operating system fails to start properly. Without support for USB inputs, users found themselves unable to navigate repair tools, making it difficult to fix issues unless they had Bluetooth or PS/2-connected devices available.

Details on the Update

Microsoft acknowledged the problem on its Windows release health dashboard, stating that it impacted both Windows 11 versions 24H2 and 25H2, in addition to Windows Server 2025. To fix this issue, the company has rolled out the KB5070773 emergency patch, which restores complete USB functionality in WinRE. Users are encouraged to obtain this fix via Windows Update or by downloading it directly from the Microsoft Update Catalog.

Impact of the Issue

The tech giant clarified that the problem was limited to the recovery environment and did not affect regular Windows sessions, where USB devices were still operational. They also indicated that the update is now fully available and aims to avert any future interruptions to recovery tools. This prompt resolution comes on the heels of several update-related challenges in recent months, but Microsoft’s swift action this time helped reduce the impact. If you frequently use the recovery environment for troubleshooting, it’s advisable to update right away to ensure your input devices function properly.