Hey everyone,
I’ve seen a lot of reports today about apps crashing with the 0x803f8001 error after the latest Windows 11 updates. It seems to be a widespread license validation bug tied to the Microsoft Store.
I spent some time testing a few fixes, and I managed to get everything stable again without needing a full system reinstall. If you’re currently stuck, here is what worked for me:
- Store Cache Reset: Open Run (Win+R), type
wsreset.exe, and run it as Administrator. Let the black window finish; it will relaunch the Store. - App Repair: Go to Settings > Apps > Installed Apps, click the three dots next to the crashing app, and select Advanced Options > Repair.
- The "Nuclear" Fix: If you have multiple apps crashing, I found that re-registering the app packages via PowerShell is the most reliable way to clear the license errors.
I recorded a quick 3-minute screen capture of exactly how I ran these steps so I wouldn't have to explain it to my clients one by one. You can see the process here if you need a visual guide: https://youtube.com/watch?v=snShuPO71R4&si=-H6ueXfDmn7YKFRf
Hopefully, this helps you save some time. Let me know if the PowerShell command works for you or if you're still seeing the error.