1. Click on the 'Start' menu in the bottom left-hand corner and click 'Run.' Type in 'cmd' and press 'Enter' on your keyboard. This will open a black command prompt box.
2. Type in 'chkdsk /f' and press 'Enter.' If you receive a message saying the disk will be checked the next time the system starts, press 'Y' and then 'Enter.' Restart your computer by closing the command prompt box and selecting 'Shut Down' from the Start menu.

3. Wait for the disk scan to reach 100 per cent. This may take awhile. When it completes, your drive errors may be fixed.
4. Avoid future problems with this type of error by replacing the file that caused the problem. For example, if you got the error when using a text document, open the document and copy all the text (press 'Ctrl' and 'A' at the same time and then 'Ctrl' and 'C' at the same time). Create a new text document and paste the text in by pressing 'Ctrl' and 'V' simultaneously. Save the new file, and delete the old document.