With modern computers there is little need to optimise. In fact, it often makes it worse.
Change power settings, make sure nothing goes to sleep, and you're done.
If you have any problems, you can disable wireless card. I only tend to do this whilst doing important tracking.
Beware of a lot of the optimisation tweaks. Many of them were needed under older OS, but since Windows 7 they are not.
I think quite a few of people's problems stem from tweaks they have done. There is no need.