KB5070773: Fixed USB devices, such as keyboards and mice, do not function in the Windows Recovery Environment

October 20, 2025—KB5070773 (OS Build 26100.6901) Out-of-band

Improvements
This out-of-band (OOB) update includes quality improvements. This update is cumulative and includes security fixes and improvements from the October 14, 2025, security update (KB5066835), in addition to the following:

• [USB] Fixed: After installing the Windows security update released on October 14, 2025 (KB5066835), USB devices, such as keyboards and mice, do not function in the Windows Recovery Environment (WinRE). This issue prevents navigation of any of the recovery options within WinRE. Note that the USB devices continue to work normally within the Windows operating system.