The geek in me wouldn't recommend for any Poser newbie to do this. I use XP Pro on a laptop with little room to spare and Poser4 fires up just fine. I even had Daz Studio installed at one point and it was never slow on windows. What works for you may not work for others. Windows tends to eatup a lot of resources and any 3D program you install will be a file hog and memory hog. So, I'm not sure how doing what you did made Poser load any faster than normal? Not douting you, just curious why you were slow to begin with? are you working with Poser4 or 5?;)