How to Use SFC /SCANNOW to Fix Corrupted System Files in Windows 10/11
How to Use SFC /SCANNOW to Scan and Repair Corrupted System Files on Windows 10/11
Windows system files are important for the proper performance and stability of your computer. Sometimes, these files can become corrupted due to software errors, malware, sudden shutdowns, failed updates, or other system issues. When this happens, you may experience problems such as Windows crashes, slow performance, missing features, or unexpected errors.
The SFC /SCANNOW tool is a built-in Windows utility that helps you scan your system files and automatically repair corrupted or missing files. It is one of the easiest ways to troubleshoot and maintain Windows without installing additional software.
How to Run SFC /SCANNOW:
1. Open the Start menu and search for "Command Prompt".
2. Right-click on Command Prompt and select "Run as administrator".
3. Type the following command:
sfc /scannow
4. Press Enter and wait until the scan process is completed.
The scan may take several minutes depending on your system. During the process, Windows checks protected system files and replaces damaged files with correct versions.
Understanding the Results:
Windows Resource Protection did not find any integrity violations:
This means your system files are healthy and no problems were detected.
Windows Resource Protection found corrupt files and successfully repaired them:
Windows found damaged files and fixed them successfully.
Windows Resource Protection found corrupt files but was unable to fix some of them:
Some files could not be repaired. In this case, you can use the DISM tool to repair the Windows image, then run the scan again.
Additional repair command:
DISM /Online /Cleanup-Image /RestoreHealth
After completing the repair, restart your computer to apply the changes.
Benefits of using SFC /SCANNOW:
Fixes corrupted Windows files
Improves system stability
Helps solve Windows errors
Repairs missing or damaged system components
Maintains better computer performance
It is recommended to use this tool when you notice unusual Windows behavior, after a system crash, or when troubleshooting operating system problems.
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