Of course you do. It’s actually really, really easy! Windows has decided for you that it will load the majority of your executables at boot into your system memory so applications will appear to start faster. But as we all know having all these processes running slows down your system and eats your memory faster than Pac-Man going after his pellets.
Navigate to %systemroot%\prefetch or for the newbie c:\windows\prefetch and delete everything in there. If you want to be on the safe side you can rename the prefetch folder something like prefetch_old.
Now give your machine a reboot and marvel at the time you have shaved off your boot time.
I actually wrote this for my first post over at www.techPersona.com. Check it out!
Edit – The post is here in all its InterWeb Glory!