Changing drive letter even though getting "The parameter is incorrect"

When I am try to change drive letter in Windows 7, I am getting error message:

The parameter is incorrect.

I know there are another tools to change drives letter. But I don't like to install a program for this simple reason. So I am searched and found a way by regedit.

The following example change the drive letter E: to M:

Open regedit
Goto HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices
Rename the key \DosDevices\E: to \DosDevices\M:
Restart the computer.

Source:

http://www.vistax64.com/vista-hardware-devices/155836-change-drive-letter-parameter-incorrect.html

Note:

Tested on Windows 7 64-bit.

Warning:

Changing the system drive letter is dangerous.
Changing drive letter should apply only for other than the system partitions.

Share Editor: editor | Posted: 2011/12/11 | Views: 22785

Tag: tips, windows 7, how to change drive letter, change drive letter error

Comments

10 + 8 =

editor

06/28/2013 05:42:13

Hi hananel,

Changing the system drive letter is dangerous.

Changing drive letter should apply only for other than the system partitions.

Let me update the post with this warning.

Thanks for feedbacak.

hananel

06/27/2013 23:39:33

I've done that for tha system drive, a big error to do... then had to retore the system to a previous point..