What is MMSSHOST.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 MMSSHOST.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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MMSSHOST.exe file information

The process known as McAfee Management Service Host belongs to software McAfee by McAfee (

Description: MMSSHOST.exe is an important part of Windows, but often causes problems. The file MMSSHOST.exe is located in a subfolder of "C:\Program Files\Common Files" (usually C:\Program Files\Common Files\McAfee\MMSSHost\). Known file sizes on Windows 10/8/7/XP are 493,248 bytes (68% of all occurrences), 415,288 bytes or 414,224 bytes. 
The file is a Verisign signed file. The program has no visible window. It is not a Windows system file. Therefore the technical security rating is 3% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you have any problems with MMSSHOST.exe, you can also do the following:

Recommended: Identify MMSSHOST.exe related errors

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

This process is known to have problems running under Windows 10. McAfee has so far not provided a solution, so most users are disabling the McAfee Firewall to solve the problem. Just be sure that Windows Defender firewall is working instead.

Summary: Average user rating of MMSSHOST.exe: based on 1 vote with 1 user comment. One user suspects danger.

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Best practices for resolving MMSSHOST issues

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

MMSSHOST.exe [all]