What is mstmon_q.exe?

The genuine mstmon_q.exe file is a software component of Konica Minolta printer status monitor by Konica Minolta.
The file named "mstmon_q.exe" is an executable in Windows for Konica Minolta printers. It monitors for the printer's operation status and if it is not on or properly connected to the system, it returns/displays an error on the screen that the printer is not turned on or connected. KONICA MINOLTA began in 2003 with a merge between KONICA and MINOLTA. It is a global industrial and business imaging company based in Tokyo that develops innovative technology for scanning, printing, and more.

Mstmon_q stands for Minolta status monitoring_query

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 mstmon_q.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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Mstmon_q.exe file information

Windows Task Manager with mstmon_q
Mstmon_q.exe process in Windows Task Manager

The process known as MSTMON_Q.EXE belongs to software unknown by KONICA MINOLTA BUSINESS TECHNOLOGIES, INC (

Description: Mstmon_q.exe is not essential for Windows and will often cause problems. The mstmon_q.exe file is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 163,840 bytes (60% of all occurrences), 167,936 bytes or 170,536 bytes. 
There is no description of the program. The file is not a Windows system file. The file is located in the Windows folder, but it is not a Windows core file. The process starts when Windows starts (see Registry key: MACHINE\Run). The program has no visible window. Therefore the technical security rating is 52% dangerous, however you should also read the user reviews.

Recommended: Identify mstmon_q.exe related errors

External information from Paul Collins:

Important: Some malware disguises itself as mstmon_q.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the mstmon_q.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

Printer still funtion without this file starting up. I removed it from start up and printing funktion ok. But if you need ink adjustments , you will have to enable this file.
  victor s  
Es gehört zu der Drucker Software von Konica Minolta.Dieser Fehler tritt auf wenn der Drucker beim Starten des PC`s nicht läuft!

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

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Best practices for resolving mstmon_q issues

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

mstmon_q.exe [all]