How to Fix a Partition Table in DOS

Use the Chkdsk DOS utilty to resolve file access issues caused by partition table corruption.

Computer file systems include a partition table that the operating system uses to quickly locate files when requested by the operating system or applications. The partition table can become corrupt or damaged if the computer is not properly shut down, if install programs are defective or if virus or worm activity occurs, resulting in inaccessible files and errors. Resolve partition table errors quickly in Windows using the Chkdsk command line utility.

Instructions

1. Click the "Start" button on the Windows desktop and click "Programs," and then click "Accessories" in the menu that appears. Right-click on the command line icon and click "Run as Administrator" in the drop-down menu that appears. The command line window will display.

2. Type "chkdsk C: /f" but replace the "C:" with the drive letter of the partition that is failing.

3. Press the "Enter" key, and then enter "Y" and press the "Enter" key again. Reboot the computer if the "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?" message appears.

4. Restart the computer after the scan is complete.

References

• Wizcrafts Computer Services: About Chkdsk
• Microsoft: Chkdsk