# Copy of the main MBR and MFT on a drive

hard drivembrmft

I'm talking about something like a backup copy located on a drive, in addition to the main.

If there is, how would I be able to retrieve it and write the backup back to the main partition?

(A GPT partition table does have a copy; the backup GPT header is on the very last sector of a disk, while the partition entries precede it. On Linux, gdisk aka gptfdisk can restore the backup to main GPT. Many recent computers in fact use GPT+UEFI, rather than MBR+BIOS.)