Forum Discussion
I had a similar problem. The game had been uninstalled because of a problem with the PC. As a matter of fact I am not sure if the game had properly been uninstalled, but the game is no longer in the PC. I tried to reinstall the game (in the same PC) but a message says the Code has already been used. What should I do?
@IsabelaBassani
You have already registered the game yourself and are trying to reinstall the game
The game does not need to be registered again. Login in the Origin Client with the Email/PW you first registered the game on and download and install the game from there. The game only needs to be registered once and you won't need the code again after your initial registration. This is true for both the DVD and the download version. You can skip the activation step on reinstalling.
Source: http://answers.ea.com/t5/The-Sims-4/FAQ-Serial-Cod