Partition shows up as a MS-DOS partition. The following are reasons why a partition may show up as a MS-DOS partition in Fdisk. A DDO or Disk Drive Overlay is being used. Partition was setup as a MS-DOS partition. A save to partition utility such as Phdisk is present on the hard disk drive.
Computer virus is present on the computer.
A DDO or Disk Drive Overlay is being used. A DDO can also be used to setup a hard disk drive on a computer. When booting from a bootable diskette and your partitions are displayed as a MS-DOS partition it is likely that a DDO is present on the computer. If this message is displayed or a similar message it is likely that a DDO is loading. To see the partitions correctly wait for this message and press the key sequence one asked to boot from a diskette.