I used to play Origins on a PC that could barely run the game. Disappointed, sure, but my fault so I unistalled and just tucked it away.
I have a new PC that can run it much better but seem to have misplaced the little insert that contained my registration code. I can't install the game now
Is there anyway I could get back to playing the game?
I suspect that the only way is to buy a new copy. Though that's not that much of a loss, because you can find it pretty cheap - just checked amazon.com, and they are selling DA:O ultimate edition (that includes all Awakening + all the DLC content) for just $13.49.