Any tools to detect which app

Hi All, is there any tools that can detect which application hogs the most CPU usage? My CPU often stays between 60%-70% and makes everything slow down. Here is one of the example:

Normally, when the system is idle, CPU usage is between 1%-8% max.
Mine: up and down between 25%-55% as if I'm running something.

Please help

 

The sysinternals tools are quite good, in this instance ProcessExplorer, would be a good starting point, ProcessMonitor might help too.

http://technet.microsoft.com/en-us/sysinternals/default.aspx

 

Task Manager can tell you a lot. Particularly if you enable the column with total CPU time and then click on it so the process with the most time is at the top.

John