Hi. I am replacing some things on my computer and had a few questions. I am getting a whole new mother board and cpu. I was wondering if I will need a fresh copy of windows to install. I will still be using the same hard drive and was wondering if windows is actually on their and if i even need to install it or do you always need to have a fresh disc to install w/ a new mobo. I am pretty new to building so any advice would be helpful