Definition: A volume boot record is a type of boot sector, stored on a particular partition on a hard disk drive or other storage device, that contains the necessary computer code to start the boot process.
A master boot record is another type of boot sector.
Also Known As: VBR, volume boot sector, partition boot sector
Examples:
"My hard drive had a major failure last week so I had to write a new partition boot sector to my system partition in Windows XP before I could get it up and running again."
