How to Fix MBR on XP

Your Windows XP computer stores your software and data on your computer's hard drive. The XP operating system tracks where all the files are located, including the files that allow XP itself to run, by storing that information in the file system. When you turn your computer on, the XP operating system first looks for a file called the master boot record so that it knows where to look in the file system for the files it needs to run. A damaged or corrupted MBR can prevent Windows XP from starting, but you can fix the MBR using the Windows XP Recovery Console.

Instructions

1. Turn the computer off and then restart it. Select "Recovery Console" from the options in the startup menu. This opens the Recovery Console.

2. Type the administrator password at the prompt, and then press "Enter." The Recovery Console will open to a command line.

3. Type "fixmbr" at the command line prompt, and then press "Enter." The Recovery Console will repair the MBR. Restart the computer when the prompt states that the repair is complete.

Tips & Warnings

• Changing the MBR on your computer can cause your computer to become unstable or unbootable. Only alter the MBR as a last resort or under the direction of a qualified professional.

References

• Microsoft Support: Description of the Windows XP Recovery Console for Advanced Users