What is mstask.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 mstask.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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Mstask.exe file information

The process known as NetEye Cliente appears to belong to software NetEye by NetEye Informática Ltda (

Description: Mstask.exe is not essential for Windows and will often cause problems. Mstask.exe is located in a subfolder of C:\Windows (e.g. C:\Windows\System\). The file size on Windows 10/8/7/XP is 1,793,536 bytes. 
The file is an unknown file in the Windows folder. The program is not visible. The process is loaded during the Windows boot process (see Registry key: MACHINE\RunServices, MACHINE\Run). It is able to record keyboard inputs. It is not a Windows core file. Mstask.exe is able to record keyboard and mouse inputs, hide itself, monitor applications and manipulate other programs. Therefore the technical security rating is 100% dangerous; however you should also read the user reviews.

Recommended: Identify mstask.exe related errors

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

Important: Some malware camouflages itself as mstask.exe. Therefore, you should check the mstask.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

Ran a port scan found it in: 508 MSTask - 1025 TCP C:\WINNT\system32\MSTask.exe No folder WINNIT and not in system32 folder. Malware helper to schedule task to remote port.
task scheduler crashes on my system due to bitdefender toolbar
Mine gets up to 300 at a time, I go into processes and my ram usage is at 67% and it's normally at around 38%, I usually have to go and delete them, takes about 20 minutes manually stop the processes. Probably virus related, I recommend fnding the source and deleting it because it hogs your system's recources. I can't disable it either, so I'm looking for a way to get rid of it.
  David G  
Run services.msc and disable the Task Scheduler if you want it to go away.
runs every time I log on
  frank y  
i went to the Symantec website and saw the following instructions: ".....Scroll through the list, and look for the following process: msstask.exe. CAUTION: This is not the same as Mstask.exe--note the single "s". Mstask.exe is a legitimate Microsoft process. Do not end that task."
its ms task scheduler. if you go into scheduled tasks and see no tasks scheduled, go ahead and disable the service
  james BONDS  
making the computer run 100, slows everything down. IE barely runs, AV and firewall, along with ASUS dont respond need a way to kill it, cant even search for it, took me five minutes to get to this site
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of mstask.exe: based on 51 votes with 9 reviews. 12 users think mstask.exe is essential for Windows or an installed application. 6 users think it's probably harmless. 6 users think it's neither essential nor dangerous. 8 users suspect danger. 19 users think mstask.exe is dangerous and recommend removing it. 5 users don't grade mstask.exe ("not sure about it").

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Best practices for resolving mstask issues

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

mstask.exe [all]