just a note to help some, if you copy or just use your old files or install you will hit one snag... permissions, the fix for this is account elevation by right clicking the bottom left corner and selecting RUN. Enter " /control userpasswords2 " no quotes of course and hit ok. Click your account then properties. Click group membership tab then click the OTHER button and select administrator. Normally you will have 2 accounts one administrator and one user, change the user one to administrator... it will then be administrator, user...
You might also need to add your specific named account to the earth and beyond folder. Right click the folder (normaly ea games) select properties, click security tab then at the bottom advanced. Click change permissions, add, up top select "select a principal". New screen click advanced, find now, and click your account that you login with normally your name. Click OK then on the next window you will see the permissions set it to full and ok it all. Do This with the net-7 folder also....
I have used this method with all my games and it works nicely and I still tri boot win 7, Win 8 pro, and win 8 beta... :)