Re: Physically lost my product key, can I get a new one?

I see - if you've never installed the game, then regedit isn't going to help you. That tip was to find the key if it was installed on your computer.

If you're saying you bought a boxed copy of SimCity, never installed the game, and have since lost the key - you're probably going to need to just go on Origin, buy a digital copy and install from there.