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What types of hard disk partitions are there?

Release: 2020-03-11 11:05:17
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What types of hard disk partitions are there?

Hard disk partition type:

1. Primary partition

The primary partition is a relatively simple partition, usually located in the front area of ​​the hard disk , forming a logical C disk. The main boot program is part of it. This program is mainly used to detect the correctness of the hard disk partition, determine the active partition, and transfer the boot right to DOS or other operating systems of the active partition. If this program is damaged, it will not be able to boot from the hard disk, but the hard disk can be read and written after booting from the floppy drive or optical drive.

2. Non-DOS partition

The non-DOS partition in the hard disk is a special partition form. It separates an area of ​​the hard disk for use by another operating system. For the operating system of the primary partition, it is a divided storage space. Only non-DOS partition operating systems can manage and use this storage area.

3. Extended partition

The concept of extended partition is relatively complex, and it is very easy to cause confusion between hard disk partition and logical disk; the fourth byte of the partition table is the partition type value, which is normal A bootable basic DOS partition larger than 32mb has a value of 06, and an extended DOS partition has a value of 05. If you change the basic DOS partition type to 05, the system cannot be started, and the data in it cannot be read or written.

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