What is MpfAgent.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 MpfAgent.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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MpfAgent.exe file information

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

The process known as McAfee Personal Firewall Agent Interface belongs to software McAfee Personal Firewall (MPF) by McAfee Security (

Description: MpfAgent.exe is not essential for the Windows OS and causes relatively few problems. The file MpfAgent.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 524,288 bytes (57% of all occurrences), 569,344 bytes or 495,616 bytes. 
The program has no visible window. MpfAgent.exe is not a Windows core file. Therefore the technical security rating is 37% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you experience any issues with installation of MpfAgent.exe, you can uninstall the software McAfee Personal Firewall Plus using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).

Recommended: Identify MpfAgent.exe related errors

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

Part of McAfee Firewall
  Parsifal   (further information)
part of McAfee firewall
extremely slows ram. Consumes 97% of the process.
  mohsen privacy service is part of McAfee internet suite
takes 90% of memory of RAM
  Denine Hewson  

Rating chart

Summary: Average user rating of MpfAgent.exe: based on 6 votes with 5 user comments. 4 users think MpfAgent.exe is essential for Windows or an installed application. One user thinks it's neither essential nor dangerous. One user thinks MpfAgent.exe is dangerous and recommends removing it.

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Best practices for resolving MpfAgent issues

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

MpfAgent.exe [all]