What is MMonitor.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 MMonitor.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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MMonitor.exe file information

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

The process known as resident module belongs to software OLYMPUS Master or Miner Monitor by OLYMPUS IMAGING CORP (

Description: MMonitor.exe is not essential for Windows and will often cause problems. The file MMonitor.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 95,536 bytes (46% of all occurrences), 95,632 bytes, 470,528 bytes, 95,800 bytes or 468,480 bytes. 
The file is a Verisign signed file. MMonitor.exe is digitally signed. The file is not a Windows system file. The software is loaded during the Windows boot process (see Registry key: Run). Therefore the technical security rating is 19% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you run into problems with MMonitor.exe, you could also uninstall Miner Monitor software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7).

Recommended: Identify MMonitor.exe related errors

Important: Some malware camouflages itself as MMonitor.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the MMonitor.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

Software von Olympus. ca 15000k
MMonitor.exe belongs to Olympus Master 2 from OLYMPUS IMAGING CORP. Olympus Master 2 - digital camera management tools

Summary: Average user rating of MMonitor.exe: based on 3 votes with 2 user comments. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous. One user suspects danger.

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Best practices for resolving MMonitor issues

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

MMonitor.exe [all]