Defrag my HD, man, I do that constantly, as soon as my pc goes in screensaver mode is does that automatically. And as soon as I reboot it will defrag files that are normally loaded as well.
Of course I realize rebooting never hurts but I also know that if there is even the smalles change this is neccesary the install software will tell you too. But lets not take this further. I was just being a smart ass
