The creative sound function doesn't really work any better than the in-game sound (it makes the ambient sound way too much loud), but it's good that it lowers guns volumes so I don't get a headache :)
About the gamebooster, I always have almost all services and startup apps OFF manually, but the Windows services I don't shutdown them.
Gamebooster already know what windows services it can shut off, and the good thing is that it's temporarily just when the game is running.
Also gamebooster shows FPS, I can take Screenshots and make videos with to
Keep Cool
yea GB is good thing, i was using it a lot on old computer, but i dont really need it on this 1 its pretty beast :D . and i use fraps for FPS when i need. but game booster is a good thing :D btw you said about making those sounds louder that doesnt really makes them be heard from afar. so thats not unfair advantage anyhow :D
Edited:
Enable system restore.
I don't know where you read that viruses hide in there. System restore is an invaluable tool if you get stuck in a tight spot.
i have computer around 10 years and NEVER used it b4. not going to do it either. so why would i enable it?