When i hit CTRL+ALT+DEL to see what processes are running on my laptop there are quite a few there that arent actually being used all the time and i wondered if anyone knew how i could go about turning some of these off to speed my machine up a little more?

Do i need to install some software to do it or is this something that can be done by hand and have the configuration saved so that i dont need to do it the next time my laptop reboots?

Regards,

Lee