I was wondering what I can do to make it operate faster.
I already did few stuff. Tell me more~~
First thing you need to do is learn how the registry works and get accustomed to using it so you don't muck something up. Then read the stuff Phant posted, after that you might have a look at http://www.winguides.com/registry/
There are some things there not in the links above and some things in the links above that aren't at that site.
If you are an avid gamer, have a look at this http://www.techspot.com/vb/showthread.php?s=&threadid=3477