HOWTO: Map a Folder to a Drive Letter
[ 20 July 2008 ]
Marked under time savers, windows.

Typically, you may map a network share to a drive letter on your machine for easy access. It usually comes in handy, but wouldn’t it be nice to do it on any folder, rather than just a network folder? You can actually do it with the subst command.

Use the following command in the command prompt:

subst letter: c:\folder\path

Replace “letter:” with an available drive letter. Here’s an example of mapping my music folder to the M:\ drive:

subst m: C:\Users\Mark\Music

Now, if you want to remove the drive letter mapping, issue the following command on the drive letter:

subst letter: /d

For example, to remove the mapping for my M:\ drive, I would do:

subst m: /d

“Back up my hard drive? How do I put it in reverse?”
          - Author Unknown