On Windows 7 (not sure if Vista) open your start menu and type "windows feat" and choose "Turn Windows features on or off". Here you will see a lot of things you don't need, such as tablet inputs, gadget platform and even... wait for it... Internet Explorer!
I am running a single process at a time (like copy a file ), It takes just 10% of my CPU and RAM usage... remaining CPU and RAM is left unsued .... IS there any option or software to make single process(like this) to utilize free memory and CPU