I just bought Ultimate Edition and I am unable to even install the game. When I click on install and select the install location nothing happens. I contacted Windows Support via live-chat who then redirected me to Xbox website to help with my issue. I noticed an Xbox Service Alert on the website.
http://support.xbox.com/en-US/
Clicking on the alert links to the Xbox Live Status webpage.
http://support.xbox.com/en-US/xbox-live-status
*Currently affected services include downloading items that have been purchased.
Hope this info helps since it took me a round-about way of finding it.