What is perfmonss.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 perfmonss.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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Perfmonss.exe file information

The process appears to belong to software perfmons Service by unknown.

Description: Perfmonss.exe is not essential for Windows and will often cause problems. Perfmonss.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 185,344 bytes (73% of all occurrences), 186,880 bytes, 184,832 bytes or 186,368 bytes. 
There is no file information. The program is not visible. It is located in the Windows folder, but it is not a Windows core file. It is not a Windows core file. Therefore the technical security rating is 77% dangerous.

Recommended: Identify perfmonss.exe related errors

Important: Some malware also uses the file name perfmonss.exe, for example Mal_Refpron or TROJ_DELF.PNP (detected by TrendMicro), and Trojan Horse or Suspicious.DLoader (detected by Symantec). Therefore, you should check the perfmonss.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 perfmonss issues

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

To help you analyze the perfmonss.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

perfmonss.exe [all]