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5. Disk Hacks > 47. Fix the Master Boot Record on FAT Partitions

Fix the Master Boot Record on FAT Partitions

Use FDISK to restore the ability to boot from your FAT-16 or FAT-32 hard drive.

FDISK is a DOS program that can actually help you out of some of those nasty “unable to locate operating system” and “no boot drive available” error conditions Windows 9x and DOS users encounter from time to time. The Master Boot Record can be corrupted by an improper shutdown, power glitch, or disk failure. Re-creating a new Master Boot Record at the first sector of the hard drive—which is what your system BIOS is looking for in order to turn over the startup operation to an operating system—is an easy fix.

Warning

If your hard drive is managed by a drive overlay utility from OnTrack or a specific program provided by your drive manufacturer (as indicated by a Disk Manager or similar announcement message during bootup) or is set to boot with the GRUB or LILO boot managers, or into Linux, using this hack will destroy access to the drive.


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