|WARNING:||A low-level format of a hard drive will destroy any existing data on that drive.|
|NOTE:||If you are using an early version of DOS (e.g. 3.3), and you see "Disk Boot failure" after using FDISK/FORMAT, then try a later version of DOS (e.g. 6.22).
Early versions of DOS don't cope with certain areas of the hard drive being unusable.