I am getting the message that "This version of Windows is no longer supported by the Windows Store. Please install the newest version of Windows." Then it tells me to sign into my Xbox account but when I go to the games tile, I am already signed in. I have uninstalled and reinstalled all of the games, I have checked for updates and I have synced the licenses. It will let me play not signed in, but all of my stats are gone, and I go between different devices so I'd like for all of them to be up to date. I tried to play Tap tiles on my laptop with Windows 8.1 and had no problems. What's up with RT?? Any help would be appreciated.