Follow these easy steps to repair a damaged master boot record in Windows XP.
- Enter Windows XP Recovery Console.
- When you reach the command prompt (detailed in Step 6 in the link above), type the following and then press Enter.
- The fixmbr utility will write a master boot record to the hard drive that you’re currently using to boot into Windows XP. This will repair any corruption or damage that the master boot record may have.
- Take out the Windows XP CD, type exit and then press Enter to restart your PC.
Assuming that a corrupt master boot record was your only issue, Windows XP should now start normally.