quick answer:
Dis-install vista, stab the hard drive containing it with a power drill, set it on fire, take a hammer and stomp it into the dust, then put it into a deep fat fryer and fryolate it, then directly put it into the freezer, then take a steamroller and roll over it about twenty-five times, and shoot it with a 0.5 caliber gun.
Then...
buy an

and DON'T PUT BOOT CAMP ON IT!!!!