Do you have the Surface 2 (with Windows RT 8.1 as an OS) or the Surface Pro 2 (with Windows Pro 8.1 as an OS)? That makes a lot of difference.
I've been having some troubles with my iPhone and want to make sure I have everything backed up in the event of a crash, but I can't seem to get iTunes onto my Surface 2 (which is my only PC. I dont have an actual laptop). I also want to be able to manage my my media through the app.