After Upgrade To Latest Windows version, or install / Uninstall applications you may notice System not running smoothly, unnecessary errors appear while open applications, system getting Freezes continuously at startup. These all are possible that Windows system files have become corrupt, gone missing, or even have been changed by a software installation somewhere along the line. To Deal With This type of problems Windows includes a SFC ( system file checker ) command utility sfc / scannow that will scan, verify, and fix corrupted, missing system files by Restore from a cache copy located on %WinDir% \system32\dllcache folder.
- How To Run SFC Utility On Windows 10
- Fix Windows Resource Protection Could Not Start the Repair Service
- System file checker Scan Results
- How to view the details of an SFC scan
This SFC utility was first available in Windows 98 and subsequent versions of Windows XP, Windows Vista, Windows 7, 8.1 and Windows 10 has this feature. In Windows 10 the System File Checker is integrated with Windows Resource Protection. Which protects registry keys and folders as well as critical system files. If any changes are detected to a protected system file, the modified file is restored from a cached copy located in the Windows folder itself.
If your are also suffering with buggy performance of your windows, Don’t worry Here fallow bellow instructions to Run the System file checker Tool on windows.
You can Run system file checker tool on Normal windows using command prompt, If windows not running smoothly then you can start windows into safe mode and run the utility or If windows unable to start you can Access Advanced startup options and Run the SFC Utility .
To run this utility in Windows, you will need to open the Command Prompt in administrator mode. On start menu search Type CMD select command prompt from search results. Right-click on it and select Run As administrator. Now When the command prompt appears, type bellow command and press Enter to execute the command.
sfc / scannow
You see text: Beginning system scan. This process takes some time.
The sfc /scannow command will scan all protected system files for corruption or missing, And if found any this utility replace corrupted files with a cached copy that is located in a compressed folder at %WinDir% \System32\dllcache. You only have to Leave the computer and wait until 100% complete the scanning process.
Note : The %WinDir% placeholder represents the Windows operating system folder. For example, C:\Windows.
In case you are unable to start the System File Checker and you instead get the “Windows Resource Protection Could Not Start the Repair Service” error, you may want to check up if your Windows Modules Installer service has been Disabled. To do so, type services.msc in start search and hit Enter. This will open Windows services, scroll down and look for Windows Modules Installer service double click on it change startup type to manual and Start the service next to service status as shown bellow image.
Wait until the scanning process to complete, Once the scan 100% completes, you will see one of the following result messages :
Windows Resource Protection did not find any integrity violations: This indicates that your system doesn’t have any missing or corrupted files.
If you get message Windows Resource Protection could not perform the requested operation: This message means that there was a problem during the scan and an offline scan is required.
Windows Resource Protection found corrupt files and successfully repaired them. Details are included in the CBS.Log %WinDir%\Logs\CBS\CBS.log: You will get this message when SFC was able to fix the problem. Now, you can move on or you can view the logs to get more details.
Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log %WinDir%\Logs\CBS\CBS.log: In this case, you’ll need to repair the corrupted files manually.
Quick Tip: You may want to run the command around three times to fix all the problems.
After complete the process simply Restart the windows to take effect the changes system file checker have do.
To see the details of a System File Checker stored in the CBS.Log file. You’ll need to make a readable copy on your desktop. For this again open command prompt as administrator, Now Type the fallowing command and press enter key.
findstr /c:”[SR]” %windir%\Logs\CBS\CBS.log >”%userprofile%\Desktop\sfclogs.txt”
This will create a sfclogs text document on Desktop. Now Open the sfclogs.txt located on the desktop with Notepad. The file will contain all the details of the scanned system files and information for files that couldn’t be repaired.
That’s All About the System file checker Utility, I hope after read this post you can easily scan and restore corrupted missing system files using system file checker utility. Share your query, Feedback on comments. Also Read How To Reset Windows Update Components on windows 10