Hog Killer Service

Hog Killer Service is an application which you can be installed as a system service and is set up to start automatically on system start. Initially, service is in the idle state. In this state, it scans the process list and CPU usage every 60 seconds.

When it detects that WmiPrvSE.exe process is on the list and is consuming more than 80% of the CPU core, it enters the alert state. In this state, it monitors the task list every 10 seconds. When it detects that the CPU usage exceedes 80% of the CPU core for five consecutive pollings, it immediately sends the KILL signal to the respective process.

Basically this means that WmiPrvSE.exe is allowed to hog the CPU for 1 to 2 minutes. Then it dies. Each such execution is logged in the Vista event log, allowing you to scan it and find out when it happened.