Novell Cool Solutions

USB Drive Letter tool


February 28, 2006 9:47 am






Download usbletter

Note: This tool now supports multiple languages (English, Spanish, Dutch and German), and multiple USB devices on one computer. Drive letter B: is now supported.

“Getting USB Devices to work under Windows XP” USB devices can give some problems in combination with NetWare mappings. Our restricted users cannot use diskmanager to change drive letters. Therefore, I created a small tool so restricted users can change the drive letter of their USB device.

Run this tool in a ZENworks application, as unsecure system user. The default drive letter suggested is U:, but when USBLetter is started with a commandline parameter another default drive letter can be chosen (E: – Z: or E – Z).

This application requires c:\temp to exist.


The program worked, but then hung on the 3rd or 4th run and every time after. I would really like to see this with pure command line and no GUI.

Correct, this seems to be inherent to the Windows XP diskpart program that I use, which hangs after 3 or 4 times trying to change a drive letter. This also happens if you use diskpart in a “dos-box” for a few times in a row to assign a drive letter.

Nice util but can’t get it to work for restricted users, Get error message “No Removable Drives Found” When using the batch file the “disk management services could not complete the operation” Works great if the user has local admin rights. Any fix to this would be great… thanks

Correct This is inherent to being a restricted user. Drive letters of removable devices are global to all users of a computer, so only administrators are allowed to change them. (This is of course also true when using Diskpart.exe or the Disk Management GUI).
A possible solution to this problem is to use ZENworks to deliver the application, running as unsecure system user. When ZENworks is not available, use the CPAU tool
( utility)

to run the tool as a user with administrative rights.

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Disclaimer: This content is not supported by Novell. It was contributed by a community member and is published "as is." It seems to have worked for at least one person, and might work for you. But please be sure to test it thoroughly before using it in a production environment.