What is mmc.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 mmc.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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Mmc.exe file information

Windows Task Manager with mmc
Mmc.exe process in Windows Task Manager

The process known as Microsoft Management Console belongs to software Microsoft Windows Operating System or Operativni sistem Microsoft Windows or Betriebssystem Microsoft Windows by Microsoft (

Description: The original mmc.exe is an important part of Windows and rarely causes problems. Mmc.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 1,401,344 bytes (28% of all occurrences), 1,414,656 bytes and 26 more variants. 
The mmc.exe file is a Windows core system file. The program has a visible window. The mmc.exe file is a trustworthy file from Microsoft. Mmc.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 2% dangerous, however you should also read the user reviews.

Recommended: Identify mmc.exe related errors

Important: Some malware camouflages itself as mmc.exe, for example Virus.Win32.Virut.ce (detected by Kaspersky), and PE_VIRUX.S-3 (detected by TrendMicro). Therefore, you should check the mmc.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

program" Driver Tool " when I uninstalled, put it on my PC
appears when defrag is running
MMC is Microsoft Management Console, a core part of the Windows operating system. It is used to host .msc snap-ins such as Computer Management, Event Viewer, Services etc. It can be found in C:\Windows\system32. On 64 bit Windows there is also a 32 bit version in C:\Windows\syswow64.
  Chris The Majestic  
Keeps running 40-60%, slowing system down.
I know that this program can be used to control others on a home network without then realizing it. I would consider it non essential unless the computer is being used as part of a work group in a business setting. I have had 2 computers crash and had some indiscriminate use of minor's computers in my household to dump files that were mostly pornographic
  Kathy Oddie  
I can't access my computer because of mmc . I am not able to delete unwanted files, and my computer is overloaded with them I absolutely despise mmc!
  wilma Simpson  
it is Microsoft Direct Play kind of like flash but it's a very important system file
  Shashin Patel  
its the management console... you can safely kill this
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of mmc.exe: based on 59 votes with 9 reviews. 38 users think mmc.exe is essential for Windows or an installed application. One user thinks it's probably harmless. 8 users think it's neither essential nor dangerous. 6 users suspect danger. 6 users think mmc.exe is dangerous and recommend removing it. 6 users don't grade mmc.exe ("not sure about it").

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Best practices for resolving mmc issues

A clean and tidy computer is the key requirement for avoiding problems with mmc. 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 mmc.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

mmc.exe [all]