Step 1. Select My Computer on the Desk Top and Press Enter.
Step 2. Arrow to the C drive, but don't press Enter.
Step 3. Press the Applications or Context menu and up arrow to Properties and press Enter.
This may also be accomplished by holding down the Alt key while pressing Enter.
Step 4. Shift Tab once, The heading will say General.
Step 5. Right arrow once to Tools.
Step 6. Tab once to Check Now and Press Enter. Note; Depending on your screen reader it may not say exactly check now.
Step 7. Tab to the Check Box that says something like Automatically fix errors and press the space bar to check it.
Step 8. Now shift tab back to start and press Enter. You will be told that scan disk can't run now and asked if you would like to schedule it for the next time the computer reboots. Press Enter on Yes.
Step 9. Now Tab to Ok and press Enter.
Step 10. You are now finished, simply close out the window. Scan Disk will run the next time the computer reboots. Allow a few extra minutes for the computer to boot up the next time.