Boot virus is the biggest threat in the world of computers. They usually go / ride into the boot sector of floppy disks and are more serious can be found on the Master Boot Record (MBR) of hard disk drive.
MBR is an essential component to enable the PC and run the operating system. Without a boot sector, the computer will not work.
At the time of boot sector virus attacks, computer viruses will direct them to work before the active MBR. And they are so much a direct attack strategy, including damage to other types of disks in the boot sector.
