Recently, I ran into an issue with Windows 8 and Spotify. Everytime I went to start playing a song on Spotify, it would play for anywhere from 30 seconds to a minute and then crash. After uninstalling Spotify multiple times, cleaning out the registry, and even running a virus scan for good measure, I came across this forum post saying that the issue was related to using Internet Sharing, which I had previously enabled to share internet connectivity with my XBox. After disabling it, Spotify worked instantly.
“It seems like Spotify crashes if you got internet connection sharing enabled when installing Spotify.