4/28/2023 0 Comments System file checker![]() ![]() This command may require access to the Windows installation source files when you restart the computer. ![]() Scanonce: Scans all protected system files one time when you restart your computer. This command may require access to the Windows installation source files. Scannow: Scans all protected system files immediately and replaces incorrect versions with correct Microsoft versions. If the cache folder becomes damaged or unusable, you can use the sfc /scannow, the sfc /scanonce, or the sfc /scanboot commands to repair its contents. You must be logged on as an administrator or as a member of the Administrators group to run System File Checker. System File Checker also checks and repopulates the cache folder. ![]() If System File Checker discovers that a protected file has been overwritten, it retrieves the correct version of the file from the cache folder ( %Systemroot%\System32\Dllcache) or the Windows installation source files, and then replaces the incorrect file. System File Checker gives an administrator the ability to scan all protected files to verify their versions. This article describes System File Checker (Sfc.exe), which is a command-line utility used with the Windows File Protection (WFP) feature.Īpplies to: Windows 10 - all editions, Windows Server 2012 R2 Description of System File Checker (Sfc.exe)
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