How to get a list of drive letters on a system through a windows shell (bat, cmd)?

Question

How do I get a list of drive letters and their associated labels on a windows system through a bat file?

Answer 1

This will get most of it:

Net Use

If you have any drives mapped via subst you would also need to get those:

Subst

For completeness, you would do it like this in Powershell (if you are on windows 7 or have installed it):

gwmi win32_LogicalDisk -filter DriveType=4

You can also do it from the command prompt or a batch file using WMI like this:

wmic logicaldisk get caption,providername,drivetype,volumename

Answer 2

@echo off
cls
setlocal enabledelayedexpansion
set "_DRIVE.LETTERS.FREE=Z Y X W V U T S R Q P O N M L K J I H G F E D C B A "
for /f "skip=1 tokens=1,2 delims=: " %%a in ('wmic logicaldisk get deviceid^,volumename') do (
   set "_DRIVE.LETTERS.USED=!_DRIVE.LETTERS.USED!%%a,%%b@"
   set "_DRIVE.LETTERS.FREE=!_DRIVE.LETTERS.FREE:%%a =!"
)
set _DRIVE.LETTERS.USED=%_DRIVE.LETTERS.USED:~0,-2%
set _DRIVE.LETTERS.USED=%_DRIVE.LETTERS.USED:,@=, @%
set _DRIVE.LETTERS

Fast, flexible and efficient. Although a little complex.

Answer 3

inspired by Scott

for %i in (a b c d e f g h i j k l m n o p q r s t u v w x y z) do @%i: 2>nul && set/pz=%i <nul

also shows CD drive letter. no need to be admin.

Answer 4

@echo off

echo list volume > scriptdiskpart

diskpart/s scriptdiskpart

del scriptdiskpart

pause

Answer 5

Somewhat kludgy, but works from a batch file:

echo LIST VOLUME > temp.txt && diskpart /s temp.txt && del /q temp.txt

Answer 6

If anyone is lucky enough to be using Vista (Vista Ultimate SP2 b6002, in my case) and the gwmi and wmic snippets given here don't work exactly, here is what I did to make it work.

For gwmi, if you receive no output, try changing the DriveType to 3. If still having problems, remove the -filter option altogether and analyze output.

gwmi win32_LogicalDisk -filter DriveType=3

For wmic, if you receive "Invalid GET Expression", then try putting the get expression in quotes:

wmic logicaldisk get "caption,providername,drivetype,volumename"

Answer 7

for %a in (c: d: e: f: g: h: i: j: k: l: m: n: o: p: q: r: s: t: u: v: w: x: y: z:) do @vol %a 2>&1 | find "drive"

• i found the diskpart approach reports DVD drives with no disc insterted, and doesn't report SD cards with valid drive volumes

Answer 8

@ECHO OFF
IF NOT EXIST A: GOTO B
:A
VOL A:
:B
IF NOT EXIST B: GOTO C
VOL B:
:C
IF NOT EXIST C: GOTO D
VOL C:
:D
IF NOT EXIST D: GOTO E
VOL D:
:E
IF NOT EXIST E: GOTO F
VOL E:
:F
IF NOT EXIST F: GOTO G
VOL F:
:G
IF NOT EXIST G: GOTO H
VOL G:
:H
IF NOT EXIST H: GOTO I
VOL H:
:I
IF NOT EXIST I: GOTO J
VOL I:
:J
IF NOT EXIST J: GOTO K
VOL J:
:K
IF NOT EXIST K: GOTO L
VOL K:
:L
IF NOT EXIST L: GOTO M
VOL L:
:M
IF NOT EXIST M: GOTO N
VOL M:
:N
IF NOT EXIST N: GOTO O
VOL N:
:O
IF NOT EXIST O: GOTO P
VOL O:
:P
IF NOT EXIST P: GOTO Q
VOL P:
:Q
IF NOT EXIST Q: GOTO R
VOL Q:
:R
IF NOT EXIST R: GOTO S
VOL R:
:S
IF NOT EXIST S: GOTO T
VOL S:
:T
IF NOT EXIST T: GOTO U
VOL T:
:U
IF NOT EXIST U: GOTO V
VOL U:
:V
IF NOT EXIST V: GOTO W
VOL V:
:W
IF NOT EXIST w: GOTO X
VOL W:
:X
IF NOT EXIST X: GOTO Y
VOL X:
:Y
IF NOT EXIST Y: GOTO Z
VOL Y:
:Z
IF NOT EXIST Z: GOTO END
VOL Z:
:END