How to Use Fixboot to Write a New Partition Boot Sector

You need to enter the Windows XP Recovery Console, the advanced diagnostic mode of Windows XP with special tools that allow you to write a new partition boot sector to the system partition. Here’s how to repair a damaged or unstable partition boot sector:  Assuming that a corrupt or unstable partition boot sector was your only problem, Windows XP should start normally.

Why Write a New Partition Boot Sector?

You’d write a new partition boot sector with fixboot if your partition boot sector was badly damaged or unreadable. The partition boot sector may have become corrupt due to a virus or damage, or it may be unstable due to configuration problems. Fixboot is available in the Recovery Console. Writing a new partition boot sector to a Windows XP system partition takes less than 15 minutes.