Did the October Windows Update Fail Your PC, and Will KB5073933 Protect Your System?
Update Details
Windows 10 includes a safety tool called the Windows Recovery Environment (WinRE). This tool repairs your computer when it fails to start. In October 2025, a bad update broke this tool. The bad update stopped USB mice and keyboards from working on the repair screen. Later, another bug stopped the repair tool from opening completely.
Microsoft tried to repair these errors several times. On March 3, 2026, the company sent out a working fix. This new fix uses two updates called KB5075039 and KB5073933.
You must install these updates to keep your computer safe. Here are the main facts you need to know:
- The Main Fix: The updates help your repair tool read your mouse and keyboard again. The repair screen will also open correctly now.
- Who Needs It: You need this fix if you use Windows 10 versions 21H2 or 22H2.
- Storage Rule: Your PC needs 250 MB of empty space in the recovery drive. The update will fail without this space.
- Easy Download: Your computer will download the fix directly through the standard Windows Update menu.
Check your settings today. Download the March 3 updates. This step ensures your computer can fix itself during future crashes.