One of the ways you can speed up a Windows computer is to stop programs from running automatically on startup. There's more than one way to do this, and manually going into the system registry to delete programs is not recommended for most users. There is a better way to do it, and it's with a free program called AutoRuns.
AutoRuns is a simple program that makes it easy to see what is launching automatically during startup or login. This includes programs that are in the startup folder, as well as other places that may contain autorun programs. To disable an auto-start entry, simply uncheck the checkbox. You can also delete entries entirely.