SFC will perform a full scan of your system and repair and replace any files that are damaged or missing, using versions from the Windows component store. Then type the following and press Enter: sfc /scannow Open an elevated Command Prompt, by running the tool as an administrator. If you’re uncomfortable with using the Command Prompt, open File Explorer, click This PC, then right-click the drive you want to check and select Properties. You can run CHKDSK from the command prompt. You can use one of the following methods: 1. To prevent future errors and potential data loss, it’s worth running CHKDSK manually at least once a month as part of your PC maintenance routine. However, it won’t actually fix any issues until instructed to do so. Windows may run CHKDSK on startup if it detects a problem with your hard drive, sometimes for innocuous reasons such as improper shutdown, but also more serious ones including malware infection and impending drive failure. It also checks your drive for bad sectors (clusters of data that cannot be read) and either tries to repair them or tells your system not to use them. For example, if it hangs while shutting down or becomes frustratingly slow.ĬHKDSK scans your entire hard drive to find and fix errors in files and the file system itself. CHKDSK (Check Disk) is the first Windows diagnostic tool you should try if your PC starts acting strangely.

Scandisk windows 10