I think i preordered it, which should give me access. I'll check and let you know.
Edit: Ok, I have beta access, it's just not working. Apparently other people have the same issue, according to their twitter, but their website seems to be down so i can't tell.
Edit #2: Turns out the version that appeared in my library isn't the actual version? Weird. Anyways, i found the actual version and I'm installing it. We'll see if I get the same error. (I'm going to go ahead and blame windows store for this. There's a reason I don't use it.)
Edit #3: (Why is this so bloody complicated.) It seems to be working now, or at least of gotten to the menu. That took way too much fiddling around, though.