If Windows 11 is crashing, behaving unpredictably, or reporting system errors, built-in servicing tools can check protected Windows files for corruption. These tools identify operating-system files; they do not scan every personal document for damage.
Check Windows system files
- Right-click Start and open Terminal (Admin).
- Run
sfc /scannow. - Leave the window open until the scan reaches 100 percent.
- Read the final message to see whether Windows found and repaired integrity violations.
If SFC cannot repair everything
Windows servicing problems can prevent SFC from obtaining healthy components. In that situation, Microsoft’s DISM servicing commands may be appropriate before running SFC again. Use documented DISM options rather than downloading replacement system files from random websites.
If corruption repeatedly returns, investigate the underlying cause. Storage errors, unstable memory, interrupted updates, or failing hardware can damage files again after a successful repair. Keep current backups before extensive troubleshooting, especially if the drive is showing signs of failure.
Matt Jacobs has been working as an IT consultant for small businesses since receiving his Master’s degree in 2003. While he still does some consulting work, his primary focus now is on creating technology support content for SupportYourTech.com.
His work can be found on many websites and focuses on topics such as Microsoft Office, Apple devices, Android devices, Photoshop, and more.