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What is Partition Table?

April 26, 2017data recovery data recovery software data recovery utilities easy recovery file recovery file undelete partition Table undelete unformat

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What is Partition Table?

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Partition can be considered as a piece of disk space, which is marked thereby runs on some operating system. Partition table is located at the first sector (cylinder 0, head 0 and sector 1, MBR) of each hard disk. It memorizes information about sizes and locations of partitions on hard disk. The partition information is started on offset 1BEH of master boot sector. Each partition entry is 16 bytes long. The total partition table is 64 bytes long. Then partition table is limited to a maximum of 4 entries. That is, there is a maximum of 4 partitions, which is called primary partition and can be created on hard disk. But there are problems: many people want to create more than 4 partitions. So the extended partition is designed for this demand. Master extended partition is the primary partition. Differing from other partitions, the first sector of extended partition is not a boot sector, but another partition table, which is called logical partition table. Commonly, there are only two par