Here’s a free, easy and quick method for routinely eliminating performance bottlenecks in Windows 7.
Download and install Process Explorer, which is part of the Microsoft SysInternals package. Launch the program, and you’ll be presented a beautiful display of all processes currently running on your system, along with a bevy of information about each process, including which files it has open, how much processor time it is using and more.
The tool works just like Task Manager, in that it can quickly kill processes that are hung or sucking up lots of processor usage, thereby speeding up your system dramatically. To kill a process, just right-click it and select “Kill” (you can also suspend it). Look for any items that are using lots of processor time (in the CPU column) and aren’t
However, Process Explorer holds a few key advantages over task manager.