Wide compatibility: all Windows PC operating systems including Windows 11/10/8.1/8/7/Vista/XP are supported. Windows PE boot: it allows you to create bootable media which will help you restore system under Windows PE when your computer fails to boot due to missing or corrupted system files. Here I’d like to recommend the best free backup software-AOMEI Backupper Standard.Īll-around data protection: it enables you to perform full system backups as well as backing up specific files, documents, disks and partitions. Compared with reinstalling Windows and all the applications, restoring system from the backup is much easier. To be released from the heavy work of reinstalling Windows when sfc /scannow fails, you should backup Windows regularly. □Bonus tip: auto backup Windows 10/11 for system recovery How to get away from the scare of sfc /scannow failure? Please read on. You even need to reinstall Windows to repair damaged system files when sfc /scannow fails. After the process is complete, reboot your computer.Īlthough you can fix corrupted system files with the sfc /scannow command, problems may occur during the process, such as sfc /scannow not working, sfc /scannow stuck, etc. Note: You need to replace C: with the drive letter of the partition that contains your Windows installation.Ĥ. In the Command Prompt window, type sfc /scannow /offbootdir=c:\ /offwindir=c:\windows and press Enter.System File Checker utility checks the integrity of Windows system files and repairs them if required. For a recovery USB, click Troubleshoot > Advanced options > Command Prompt.ģ.For Windows installation media, click Repair your computer > Troubleshoot > Advanced options > Command Prompt.Open Command Prompt from Windows Recovery Environment. Boot your PC with Windows installation media or a recovery drive.Ģ. If your PC fails to boot, you may perform an SFC scan offline. Type exit and press Enter to exit Command Prompt. > In this condition, you can perform the System File Checker scan in safe mode, and make sure that the PendingDeletes and PendingRenames folders exist under %WinDir%\WinSxS\Temp.ĥ. ▶ Windows Resource Protection could not perform the requested operation. > In this case, you can view details of the System File Checker process in %WinDir%\Logs\CBS\CBS.log, and then manually replace the corrupted file with a known good copy of the file. ▶ Windows Resource Protection found corrupt files but was unable to fix some of them. ▶ Windows Resource Protection found corrupt files and successfully repaired them. ▶ Windows Resource Protection did not find any integrity violations. After the verification reaches 100%, you may receive one of the following messages: Note: The %WinDir% placeholder represents the Windows operating system folder. Type sfc /scannow and press Enter to scan system files and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir%\System32\dllcache. To run sfc /scannow in Windows 7, you can skip to Step 3.ģ. Note: Running the DISM (Deployment Image Servicing and Management) tool prior to SFC is only necessary on Windows 11/10/8.1/8. It may take several minutes for the command operation to be completed. Type DISM.exe /Online /Cleanup-image /Restorehealth and press Enter. Right click “cmd” and then select “Run as administrator”.Ģ. Tap the Search button on the taskbar and type “cmd” in the search box. To run sfc /scannow in Windows 10/11, you can follow the steps below: SFC scan on Windowsġ. Then, how to perform sfc /scannow repair exactly? How to use sfc /scannow in Windows 10/11 to repair corrupted system files It is extremely useful to repair incorrect, corrupted, changed, or damaged system files. Sfc /scanfile=: scans integrity of the referenced file and repairs file if problems are identified.Īmong all the command switches, sfc /scannow is the most frequently-used one. Sfc /verifyonly: scans integrity of all protected system files without repairing. Sfc /scannow: scans integrity of all protected system files and repairs files with problems when possible. There are several specific switches available in the SFC command such as: The SFC (System File Checker) command is a Command Prompt command that is used to verify and replace important Windows system files.
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