This is what i used to activate my windows 8 pro with media center and hope you guys can use it too hope you can figure it out you just have to use the phone activation and select united kingdom and call the automated service there via skype and you should be all set if any questions plz comment and i will try to help and i also included keys from another here on piratebay so thanks to him for the working keys !

  http://bayimg.com/mapOOaaEI