What is McSvHost.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 McSvHost.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 McSvHost.exe related errors

McSvHost.exe file information

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

The process known as McAfee Service Host belongs to software McAfee Shared Service Host or McAfee Integrated Security Platform or McAfee SiteAdvisor Service, McAfee Personal Firewall Service, McAfee Services, McAfee VirusScan An or McAfee Personal Firewall Service, McAfee Services, McAfee VirusScan Announcer, McAfee Network Agen by McAfee (

Description: McSvHost.exe is not essential for Windows and will often cause problems. The McSvHost.exe file is located in a subfolder of "C:\Program Files\Common Files". Known file sizes on Windows 10/8/7/XP are 271,480 bytes (13% of all occurrences), 201,304 bytes and 22 more variants. 
The program has no visible window. The McSvHost.exe file is a Verisign signed file. The McSvHost.exe file is digitally signed. McSvHost.exe is not a Windows core file. The software listens for or sends data on open ports to a LAN or the Internet. McSvHost.exe is able to monitor applications. Therefore the technical security rating is 27% dangerous, however you should also read the user reviews.

Uninstalling this variant: If problems with McAfee, Inc. come up, you could also do the following:

Recommended: Identify McSvHost.exe related errors

If McSvHost.exe is located in a subfolder of "C:\Program Files", the security rating is 22% dangerous. The file size is 355,440 bytes (50% of all occurrences), 249,936 bytes or 328,928 bytes. The program has no visible window. The file is a Verisign signed file. McSvHost.exe is digitally signed. McSvHost.exe is not a Windows system file. McSvHost.exe is able to monitor applications.

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

Related to McAfee Internet Security
Related to McAfee on some computers, eats CPU
Part Of Mcafee Internet Security. it seems to use a decent amount of cpu power but if you use mcafee then its fine.
It is killing my XP computer 100% CPU
  Jay Bilyeu  
Frequently causes errors when switching between users. If you want McAfee you gotta have McSvHost too. Shouldn't use more than 20-25kb of memory, which isn't much.
It's a file related to McAfee Internet Security.
It duplicates itself in your Firewall allowed apps whenever you try to remove it, even after the software is supposed to be removed from your system. Very weird.
  Not a McAFee lover  
Filling up the RAM enourmously fast. Killing my System with a completely filled RAM.
  Julian Schmidt  

Rating chart

Summary: Average user rating of McSvHost.exe: based on 10 votes with 8 user comments. 2 users think McSvHost.exe is essential for Windows or an installed application. 2 users think it's probably harmless. 2 users think it's neither essential nor dangerous. 4 users suspect danger. One user is not sure about it.

Do you have additional information?
What do you know about McSvHost.exe:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving McSvHost issues

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

McSvHost.exe [all]