What is msert.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 msert.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.

Click to Run a Free Scan for msert.exe related errors

Msert.exe file information

Windows Task Manager with msert
Msert.exe process in Windows Task Manager

The process known as Microsoft Support Emergency Response Tool belongs to software Microsoft Anti-Malware Signature Package by Microsoft (

Description: Msert.exe is not essential for Windows and will often cause problems. The msert.exe file is located in a subfolder of the user's profile folder or sometimes in a subfolder of "C:\Program Files". The file size on Windows 10/8/7/XP is 13,179,660 bytes. 
The file has a digital signature. The msert.exe file is not a Windows core file. The program has no visible window. Msert.exe is able to monitor applications and manipulate other programs. Therefore the technical security rating is 25% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can uninstall Microsoft Anti-Malware Signature Package, or ask Support team for help. Go to Microsoft Anti-Malware Signature Package in the Windows Control Panel (Software or Programs section) to uninstall it, or go to for Customer Support.

Recommended: Identify msert.exe related errors

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

I've just had a message from Windows Defender that Trojan:Win32/Gatrid.E!plock came from \Downloads\msert.exe, and downloaded today. (Not by me!) So I assume that Windows has downloaded this file (as part of Update?)and Defender has then deleted it. Sounds very Microsoft!

Summary: Average user rating of msert.exe: based on 1 vote with 1 user comment. One user thinks it's neither essential nor dangerous. One user is not sure about it.

Do you have additional information? Help other users!
What do you know about msert.exe:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving msert issues

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

msert.exe [all]