System File Checker (SFC) is a handy tool in Windows 10 that scans and repairs corrupted system files. If your PC is acting up, running SFC can often save the day by fixing these issues. Here’s a quick guide: Open Command Prompt as an administrator, type “sfc /scannow,” and press Enter. Wait for the scan to complete, and you’re done!
How to Run System File Checker in Windows 10
In the following steps, we will walk you through running System File Checker on your Windows 10 machine. This will help fix any corrupted system files that might be causing problems on your computer.
Step 1: Open Command Prompt as Administrator
First, click on the Start menu and type “cmd”. Right-click on Command Prompt and choose “Run as administrator”.
Opening Command Prompt as an administrator ensures that you have the necessary permissions to run the System File Checker. If you just open Command Prompt without these permissions, SFC might not work correctly.
Step 2: Type the Command
In the Command Prompt window, type sfc /scannow and press Enter.
This command tells Windows to start scanning for any corrupted system files. The process might take a while, so be patient.
Step 3: Wait for the Scan to Complete
The scan can take anywhere from a few minutes to an hour, depending on your system. Let it run without interruptions.
During this time, the tool will check all protected system files and replace corrupted files with a cached copy located in a compressed folder at %WinDir%System32dllcache.
Step 4: Review the Scan Results
Once the scan is finished, you will see a message. It will tell you if any corrupt files were found and repaired or if everything is in good shape.
If the SFC finds corrupted files and fixes them, it will let you know what it repaired. If it can’t fix some files, it will also inform you.
Step 5: Restart Your Computer
After the scan, restart your computer to apply any changes.
Restarting your computer ensures that all repairs are properly applied and any lingering issues are resolved.
After completing these steps, your system should be free from corrupted files that might have been causing issues. You should notice improved performance and fewer errors.
Tips for Running System File Checker in Windows 10
Run As Administrator: Always run the Command Prompt as an administrator for the SFC tool to work correctly.
Check for Updates: Before running SFC, make sure your Windows is up to date. Sometimes updates can fix issues before you even need to run the tool.
Safe Mode: If SFC doesn’t run properly, try booting into Safe Mode and running the scan again.
Log Files: Check the CBS.log file located in the %windir%logscbs directory for detailed information on any files that couldn’t be fixed.
DISM Tool: If SFC can’t fix some files, you might need to run the DISM (Deployment Imaging Service and Management Tool) using the command
DISM /Online /Cleanup-Image /RestoreHealth.
Frequently Asked Questions
What does SFC stand for?
SFC stands for System File Checker. It’s a utility in Windows that helps fix corrupted system files.
Why should I run System File Checker?
Running SFC can help resolve various system issues caused by corrupted or missing system files. It’s a good first step in troubleshooting your computer.
Can I use my computer during the scan?
It’s best to avoid using your computer while SFC is running. This ensures the tool can operate without interruptions.
What if SFC can’t fix the files?
If SFC can’t fix some files, you might need to use the DISM tool or consider a fresh Windows installation.
How often should I run SFC?
You don’t need to run it regularly. Use it when you suspect system file corruption, like after a crash or if you notice unusual system behavior.
Summary
- Step 1: Open Command Prompt as Administrator
- Step 2: Type the Command
- Step 3: Wait for the Scan to Complete
- Step 4: Review the Scan Results
- Step 5: Restart Your Computer
Conclusion
Running System File Checker in Windows 10 can be a game-changer when it comes to resolving system issues. By following the steps we’ve laid out, you’ll be well-equipped to tackle those pesky corrupted files that can slow down your computer or cause random errors. Remember, this tool is like a first aid kit for your Windows system—use it wisely and as needed.
For further reading, consider looking into other Windows troubleshooting tools like the DISM tool, which can offer additional help when SFC isn’t enough. If you’ve found this guide helpful, share it with someone who might be struggling with their PC. Taking these small steps can make a big difference in keeping your computer running smoothly.
Matthew Burleigh has been writing tech tutorials since 2008. His writing has appeared on dozens of different websites and been read over 50 million times.
After receiving his Bachelor’s and Master’s degrees in Computer Science he spent several years working in IT management for small businesses. However, he now works full time writing content online and creating websites.
His main writing topics include iPhones, Microsoft Office, Google Apps, Android, and Photoshop, but he has also written about many other tech topics as well.