ChkDsk is a Microsoft command-line utility present in Windows operating systems that scans your PC’s volumes for potential problems and errors. It can also automatically repair problems like directory errors, bad sectors, lost clusters, etc.

Running the ChkDsk Utility can easily take an hour or two so don’t plan to run the scan in the middle of your peak computer-using hours.

To Access ChkDsk:

1.    Go to your Start menu and click on My Computer.
2.    Right click on your hard drive and then click on Properties.
3.    In the window that opens, click on the Tools tab.
4.    Under “Error-checking,” click “Check Now.”