Fix MBR in Windows XP and Vista By Yourself
What is the MBR?
A master boot record (MBR), or partition sector, is the 512-byte boot sector that is the first sector ("LBA Sector 0") of a partitioned data storage device such as a hard disk. (The boot sector of a non-partitioned device is a Volume Boot Record. These are usually different, although it is possible to create a record that acts as both; it is called a multi boot record.) The MBR may be used for one or more of the following:
- Holding a disk’s primary partition table
- Bootstrapping operating systems, after the computer’s BIOS passes execution to machine code instructions contained within the MBR
- Uniquely identifying individual disk media, with a 32-bit
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