Learn about Halo Spartan Assault on Windows Phone 8 and 8.1, and find out where to get troubleshooting help.
Learn about the Xbox Music Pass and how to get it on your Windows Phone so that you can access unlimited music for downloading or streaming. A free, 30-day trial is available.
Learn what to do if you have problems using Xbox Music on Windows Phone 8.1.
Learn what to do if you see error 8300300B when trying to sync iTunes music or video to your Windows Phone 8 using the Windows Phone app for desktop.