Harry Potter And The Order Of The Phoenix Serial Key I Have Pc Game Demo...i Want To Have The Full Version....can I Change Using Some Patch Or Keys??

I have pc game demo...i want to have the full version....can i change using some patch or keys?? - harry potter and the order of the phoenix serial key

Harry Potter and the Order of the Phoenix ea.com ...... pls can u send the links where the marginal change series method available to ....