When I bought Skyrim, I installed it with Steam and on my old Windows 7 computer. Its not a very good gaming computer and Skyrim is always a little laggy on it. I learned to deal with it but now I've got a Mac Book Pro that I know for a fact won't make Skyrim laggy. The problem is, I have no idea how to transfer it. Do I just put the files on a USB and directly bring it over? If so, what exact files do I get? I'm really scared that I could mess up the files and have no Skyrim on either computer. What is the best and safest way to transfer? Please give me step by step instructions because I'm not good at dealing with computer files.