How to Fix Windows XP Damaged Boot Sectors?
The master boot record (MBR) is a small program typically located on the first sector of the hard drive.
It examines the partition table to determine which partition to boot first and then executes the proper commands to run the operating system installed on that partition. If the boot sector becomes corrupt or is overwritten by another operating system, Windows XP will not be able to load. Fortunately, the Windows XP installation CD contains an application that can fix damaged boot sectors.
Place the Windows XP CD into the optical drive, and then restart the computer. Enter the BIOS (usually by pressing "F1," "F2," or the "Delete" key) and set the system to boot from the optical
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