So I went out and bought a copy of windows home premium oem for my first computer build. We'll then in class I found out that my teacher was giving out free copies of windows as long as there used for educational purposes. So I decided to get windows 7 pro. So my question Is, is thee a way to copy everything on my main drive to another drive then reformat, upgrade and then replace all the data but still have the newer os without anytime upgrade?