System File Checker Windows 11 _best_ -

This will take about 10–15 minutes. You’ll see a progress bar climb to 100%. Let it finish completely. Note: It might look stuck at 62.3% for a while—this is normal.

The is a critical built-in utility in Windows 11 designed to scan, verify, and repair corrupted or missing operating system files. Over time, system files can become damaged due to sudden power outages, malware, or faulty software installations, leading to system instability, freezes, or "Blue Screen of Death" (BSOD) errors. system file checker windows 11