The so-called MBR, that is, the master boot record, is a boot sector at the front of the drive when partitioning the hard disk or removable disk of the IBM compatible machine. The main boot program and hard disk partition table used to boot the hard disk are stored in the boot sector.

Rebuilding MBR will only rewrite the main boot program in the boot sector, and will not make any changes to the hard disk partition table, nor will it affect the storage of the original files, so rebuilding MBR will not lead to the loss of the original data of the hard disk.

For more information about MBR, please refer to the relevant entries in Baidu Encyclopedia, and the address is as follows:

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