Introduction: Windows volume drive letters can be altered from the command line using Diskpart. Requirements: Access to the Windows command line. Procedure: From your taskbar, start a search for cmd Enter the command: diskpart Enter the command: list volume Example output: DISKPART> list vol Volume ### Ltr Label Fs Type Size Status Info ---------- --- ----------- ----- ---------- ------- --------- -------- Volume 0 C NTFS Simple 119 GB Healthy Boot Volume 1 System Rese NTFS Simple 100 MB Healthy System Volume 2 D DVD-ROM 0 B No Media Enter the command: select volume 2 but replace “2” with the desired volume number. Enter the command: assign letter=q but replace the “q” with any desired letter that is not already being used by another volume. More Information: Type: help assign within diskpart for more information.