What is mdm.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 mdm.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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Mdm.exe file information

Windows Task Manager with mdm
Mdm.exe process in Windows Task Manager

The process known as Machine Debug Manager or SSH, Telnet and Rlogin client

belongs to software Microsoft Visual Studio .NET or Microsoft Office Professional (version 2007) or Microsoft Development Environment or Microsoft® Visual Studio or Microsoft Office Professional Edition or Microsoft Office Standard Edition (version 2003) or Microsoft Office Enterprise (version 2007) or Microsoft Office Professional Plus (version 2007) or Microsoft Office FrontPage (version 2003) or Microsoft Office Ultimate (version 2007) or Microsoft Office Outlook (version 2003, 2007)

by Microsoft ( or Simon Tatham (

Description: Mdm.exe is not essential for Windows and will often cause problems. The file mdm.exe is located in a subfolder of "C:\Program Files\Common Files" or sometimes in a subfolder of the user's "Documents" folder (usually C:\Windows\System\ or C:\Program Files\Common Files\Microsoft Shared\VS7Debug\). Known file sizes on Windows 10/8/7/XP are 322,120 bytes (69% of all occurrences), 335,872 bytes and 7 more variants. 
The program has no visible window. The file is not a Windows system file. The file is digitally signed. The process can be removed using the Control Panel's Add\Remove programs applet. Mdm.exe is able to monitor applications. Therefore the technical security rating is 29% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with Microsoft Office Professional or Microsoft Office Enterprise occur, you can also do the following:
  1) remove the entire program using Windows Control Panel
  2) get help from the software vendor Microsoft.

Recommended: Identify mdm.exe related errors

External information from Paul Collins:
There are different files with the same name:

Important: Some malware camouflages itself as mdm.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Trojan:Win32/Malagent or Trojan:Win32/Ertfor.B (detected by Microsoft), and W32.IRCBot or Downloader.Ertfor (detected by Symantec). Therefore, you should check the mdm.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

Recently in torrent-sharing, mdm.exe can also be a Bitcoin-miner. If it is taking a LOT of resources on both the CPU and GPU, make sure to go to the file of origin and remove it and the related files in that folder.
i know my security said this program has no valid digital signature that verifies its publisher. now that sounds like a good warning to me. so if the publisher would like to relax everyone tell your programers to do it right.
i think it's file of system... don't eff with win xp
Win32:Agent-AOBU [Trj] is masked as mdm.exe
  IvanBG   (further information)
My Windows 7 gave a blue screen of death after logging in, saying registry corrupt. After deactivating mdm.exe in the VS7Debug dir, no more blue screen.
  Riaan Havenga  
I renamed it.. lagging is gone
i get MDM.exe when i start Sims2 i have buy it in the game store and when i strart hes give MDM.exe
The Machine Debug Manager runs as a service and is loaded when your computer starts. If you do not use your computer for debugging purposes, you can safely turn off the Machine Debug Manager.
  Jabberwockie   (further information)
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of mdm.exe: based on 166 votes with 9 reviews. 83 users think mdm.exe is essential for Windows or an installed application. 9 users think it's probably harmless. 33 users think it's neither essential nor dangerous. 17 users suspect danger. 24 users think mdm.exe is dangerous and recommend removing it. 12 users don't grade mdm.exe ("not sure about it").

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Best practices for resolving mdm issues

A clean and tidy computer is the key requirement for avoiding problems with mdm. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the mdm.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

mdm.exe [all]