What is MpfService.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 MpfService.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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MpfService.exe file information

The process known as McAfee Personal Firewall Service or Personal Firewall Service belongs to software McAfee Personal Firewall or McAfee Personal Firewall Plus by McAfee ( or (

Description: MpfService.exe is not essential for the Windows OS and causes relatively few problems. The MpfService.exe file is located in a subfolder of "C:\Program Files" (mostly C:\Program Files\\Personal Firewall\). Known file sizes on Windows 10/8/7/XP are 548,864 bytes (57% of all occurrences), 577,536 bytes, 184,320 bytes or 552,960 bytes. 
The program is not visible. MpfService.exe is not a Windows core file. MpfService.exe is able to hide itself. Therefore the technical security rating is 37% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with McAfee Personal Firewall Plus occur, you may also completely remove it (Control Panel ⇒ Uninstall a Program).

Recommended: Identify MpfService.exe related errors

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

Installed by McAfee Virus Suite 7
Errror message - Unable to locate component privacy service is part of McAfee internet suite
  Santaria   (further information)

Summary: Average user rating of MpfService.exe: based on 4 votes with 4 user comments. 4 users think MpfService.exe is essential for Windows or an installed application. One user is not sure about it.

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Best practices for resolving MpfService issues

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

MpfService.exe [all]