What is USBDLM_usr.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the USBDLM_usr.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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USBDLM_usr.exe file information

Windows Task Manager with USBDLM_usr
USBDLM_usr.exe process in Windows Task Manager

The process known as USBDLM helper application (version (x64), x64) or USBDLM helper application (Win32) belongs to software USB Drive Letter Manager or short description or USB drive letter manager by Uwe Sieber - (

Description: USBDLM_usr.exe is not essential for the Windows OS and causes relatively few problems. USBDLM_usr.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 18,944 bytes (12% of all occurrences), 22,528 bytes and 9 more variants. 
The program is not visible. The USBDLM_usr.exe file is not a Windows core file. The application can be uninstalled in the Control Panel. USBDLM_usr.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 35% dangerous, however you should also read the user reviews.

Uninstalling this variant: The developer Uwe-sieber provides a website for help [1][2] and for updates. There is also an uninstaller (Control Panel ⇒ Uninstall a Program ⇒ USB Drive Letter Manager or Uwe Sieber).

Recommended: Identify USBDLM_usr.exe related errors

If USBDLM_usr.exe is located in a subfolder of the user's profile folder, the security rating is 49% dangerous. The file size is 18,944 bytes (25% of all occurrences), 28,056 bytes, 24,064 bytes or 23,128 bytes. The program has no visible window. The USBDLM_usr.exe file is not a Windows core file. USBDLM_usr.exe is able to record keyboard and mouse inputs.

Uninstalling this variant: The developer Uwe-sieber provides a support site for assistance, and an uninstaller (Control Panel ⇒ Uninstall a Program ⇒ short description or Uwe Sieber).

Important: Some malware camouflages itself as USBDLM_usr.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the USBDLM_usr.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

USB Drive Letter Manager verwaltet Laufwerksbuchstaben von USB Laufwerken
Gehört zum USBDLM-Dienst
  Uwe Sieber   (further information)

Summary: Average user rating of USBDLM_usr.exe: based on 2 votes with 2 user comments. 2 users think USBDLM_usr.exe is essential for Windows or an installed application.

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Best practices for resolving USBDLM_usr issues

A clean and tidy computer is the key requirement for avoiding problems with USBDLM_usr. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the USBDLM_usr.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

USBDLM_usr.exe [all]