In some computer environments, you can change the drive letters of a floppy drive between A: and B:. However, all IBM-compatible computers only support the standard floppy disk drive on either A: or B: and no other drive letter. If you want to change the drive letter, your BIOS setup must support this option.

The following information is for older computers with the original internal floppy disk drive and not computers with USB floppy drives.

  • How to enter and exit the BIOS or CMOS setup.
  • How to change drives in MS-DOS and Windows command line.
  • See our floppy disk and floppy drive definitions for further information on each of these terms.
  • Floppy drive help and support.