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How To Check A Disk For Errors

Windows XP

Click on the Start Menu and click Run. Type cmd and click OK. At the command prompt, type chkdsk c: /f and press Enter. You will see the following question:

Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)
Type Y and then press Enter. The next time you restart your computer, CHKDSK will run.

Windows 7/Vista

You can perform this action via the disk properties by following the directions at:

You can also perform this action from the command line. Click on the Start Menu and type Command. Right-click on the Command Prompt shortcut and click Run as administrator. At the command prompt, type chkdsk c: /f and press Enter. You will see the following question:

Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)
Type Y and then press Enter. The next time you restart your computer, CHKDSK will run.

Mac OS X

Double-click on your hard drive (usually labeled Macintosh HD), and go to the Utilities folder within the Applications folder. Double-click on the Disk Utility icon. You can verify any disk including the start-up disk, but to perform a repair, you will need to boot from a copy of the Mac OS X installation DVD at least as new as the currently installed version of Mac OS.




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Last updated Friday, May 7, 2010