What Does SFC SCANNOW Do

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The SFC /Scannow command checks to corrupted or missing system files. It then replaces the corrupt or missing files with the correct version. • But, before using the sfc /scannow command, it is better to use the DISM tool first. The DISM tool allows you to check if the component store is healthy. This is important because the component store is the database that sfc /scannow gets its files from to replace the corrupted files. • • 1. Dism /Online /Cleanup-Image /CheckHealth • This does a quick check tto see if the component store is healthy. • 2. Dism /Online /Cleanup-Image /ScanHealth • This does a more thorough check, but may take a couple of minutes. • 3. Dism /Online /Cleanup-Image /RestoreHealth • This repairs the component store. • 4. sfc /scannow • Once the component store is in good shape, run the sfc command. • • https://support.microsoft.com/en-au/t... • https://learn.microsoft.com/en-us/win...

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