Master Boot Record,
MBR is also sometimes referred to as the
master boot block
and
master partition boot sector. The MBR is the first sector
of the computer hard disk drive that tells the computer how to load the operating system, how the hard drive is
partitioned, and how to load the operating system(s).
In the above picture, is an example of what a partitioned hard disk drive
may look like. In this case, the MBR is the first section of the hard disk
drive the computer looks at after the BIOS hands control to the first
bootable drive. Unlike the VBR, there is always only going to be a maximum
of one MBR on a partitioned hard drive.
The MBR is also susceptible to boot sector viruses that can corrupt or
remove the MBR, which can leave the hard drive unusable and prevent the computer from booting up.
For example, the Stone Empire Monkey Virus is an example of a MBR virus.
The
MBR is stored in the first
sector of the
boot disk:
The specific code in the MBR could be a Windows MBR loader, code from Linux :
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