1. Double-click 'Computer' on your desktop. Right-click the 'C:' drive and select 'Properties.'
2. Open the 'Tools' tab.

3. Click 'Check Now...' beneath the 'Error Checking' header.
4. Place a check on 'Automatically fix file system errors' and 'Scan for and attempt recovery of bad sectors.'
5. Click 'Start.' You are prompted to restart the computer to begin the Chkdsk scan.