To run disk checking:

In My Computer or Windows NT Explorer, click the volume you want to check. On the File menu, click Properties.

Select the Tools tab.

Under Error-checking, click Check Now.

Under Check Disk Options, select the Scan for and attempt recovery of bad sectors check box.

Note: All files must be closed for this process to run. If the volume is currently in use, a message asks if you want to reschedule the disk checking for the next time you restart your system. Then, the next time you restart your system, disk checking will run. Your volume will not be available to run other tasks while this process is running.