what is perfmon.exe
perfmon.exe is located in the folder C:\Windows\System32. The file size on Windows XP and Windows Vista 32 is 120,320 bytes while the file size on Windows Vista 64 bit is 124,928 bytes. Perfmon.exe is a Windows system file and this process has a visible window. Perfmon.exe is a trustworthy file from Microsoft. There are no real threats from the file although it is not yet known whether removing it will harm the computer.