This is the core function. It automatically diagnoses and fixes issues like:

Free versions burn a recovery USB that displays "Created by Trial Version – Buy Now" during repair. The Top Full version produces clean professional media—vital if you’re a technician charging for repairs.

Assuming you have acquired the PassFab FixUWin Top Full license, here is how to fix a dead PC:

Step 1: Prepare a working PC. Download and install PassFab FixUWin on a friend’s computer.

Step 2: Create a bootable USB.

Step 3: Boot the broken PC from the USB.

Step 4: Select the repair module (Full access).

Step 5: Automatic repair. The software will replace corrupted system files, rebuild the BCD (Boot Configuration Data), and fix registry errors. Wait 5–10 minutes.

Step 6: Restart. Remove the USB. Your PC will boot normally.