How to remove the msnmsg virus

Most antivirus programs identify msnmsg.exe as malware—e.g. Kaspersky identifies it as Trojan-Downloader.Win32.Agent.sod or Trojan-Clicker.Win32.Delf.if, and TrendMicro identifies it as PAK_Generic.001 or TROJ_GEN.R47C1KE.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the msnmsg.exe malware

Msnmsg.exe file information

The process known as Windows Live Messenger Configuration or Windows Live Messenger appears to belong to software Messenger by Microsoft (

Description: Msnmsg.exe is not essential for Windows and will often cause problems. The file msnmsg.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 152,064 bytes (44% of all occurrences), 365,568 bytes, 1,047,040 bytes, 1,007,104 bytes or 486,400 bytes. 
There is no information about the author of the file. The file is an unknown file in the Windows folder. It is not a Windows core file. The program has no visible window. The software is loaded during the Windows boot process (see Registry key: MACHINE\Run, Run, MACHINE\User Shell Folders, MACHINE\RunServices). Msnmsg.exe is able to record keyboard and mouse inputs and connect to the Internet. Therefore the technical security rating is 76% dangerous.

Recommended: Identify msnmsg.exe related errors

External information from Paul Collins:
There are different files with the same name:

Important: You should check the msnmsg.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.


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Best practices for resolving msnmsg issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active msnmsg process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the msnmsg.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. 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.

Other processes

msnmsg.exe [all]