Definition: Windows drive identification

Drives in Windows are identified with a letter and colon as follows. See cmd abc's.

  A: First floppy
  B: Second floppy
  C: Main hard drive (HD) or SSD drive
  D: Second HD or second HD partition
      or CD/DVD drive
  E: through Z: CD/DVD and USB drives,

Switching Drives on the Command Line
To switch drives at the command prompt, type the drive letter and colon; for example, to go to drive D from C, type:

      C:\>d:    switch drives
      D:\>      prompt changes