USB Drive Letter Manager (USBDLM) 5.7.3
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Author:
Uwe Siber
Date: 07/06/2025 Size: 2 MB License: Freeware Requires: 11|10|8|7 Downloads: 163493 times 
TIP:
Click Here to Repair orRestore Missing Windows Files |
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USB Drive Letter Manager (USBDLM) is a Windows service that controls Window's drive letter assignment for USB drives.
Running as a service makes it independent of the logged-on user's privileges, so there is no need to give the users the privilege to change drive letters.
It automatically solves conflicts between USB drives and network or subset drives of the currently logged-on user.
Furthermore, you can define new default letters for USB drives and much more.
USB Drive Letter Manager (USBDLM) can:
check if the letter is used by a network share of the currently logged on user and assign the next available letter
reserve letters, so they are not used for local drives
assign a letter from a list of new default letters, also dependent on many different criteria as the active user, drive type, connection (USB, FireWire), USB port, volume label, size, and others
assign letters for a specific USB drive by putting an INI file on the drive
remove the drive letters of card readers until you insert a card
show a balloon tip with the assigned drive letter(s)
define autorun events depending on many different criteria
many other things, see help file, available online as HTML version too
Similar:
How to Optimize USB Drives for Better Performance
How to Show or Hide the Safely Remove Hardware Icon
What Is an SS USB Port?
How to Diagnose USB Problems
Running as a service makes it independent of the logged-on user's privileges, so there is no need to give the users the privilege to change drive letters.
It automatically solves conflicts between USB drives and network or subset drives of the currently logged-on user.
Furthermore, you can define new default letters for USB drives and much more.
USB Drive Letter Manager (USBDLM) can:
define autorun events depending on many different criteria
Similar:
Version History for USB Drive Letter Manager (USBDLM):
https://www.uwe-sieber.de/usbdlm_e.html#news
Editor's Note:
Version 4 download is available should you have any issues using version 5.x.
Screenshot for USB Drive Letter Manager (USBDLM)
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