Can't download any of my sims 3 games

@PecanPuertoRican The DRM (digital rights management) for this game when released was SecuROM and SafeDisc. As optical drives are disappearing from computers, SafeDisc is no longer a viable DRM method. Poor support (no support) of SecuROM and the fact that it was considered a rootkit was an issue. SecurROM had an install limit. When Windows 10 was released along with OSX no longer support the DRM of SecuROM. The DRM for this game is now Origin. There is no longer an install limit and you can download the installers for the game and packs. Proof of ownership has always been the code that is on the pamphlet when you buy/bought the game/pack. If you have access the the computer you played TS3 on before Origin you may be able to recover some (if not all) of the codes you used to install the game/packs from the registry if the computer is/was a Windows computer and has not have the operating system reinstalled. You take the codes and redeem those codes in your Origin account. Once the game/packs appear in the same Origin account you can download the games from there. You can use the discs but you can't patch the game for Origin and some of the packs will only work with Origin. If you don't have the activation codes you will have to contact EA customer service and see if they can verify ownership and they MAY issue a new activation code. Sims 4 always used Origin for DRM. When Microsoft and Apple decided to end support for SecuRom, EA developed a DRM Steam like method of Origin. Before Origin the DRM for this game was very loose. If you have several Origin accounts, EA customer service can merge these accounts into one account so your game and packs are all in one account. If you let other users use your codes the person who registers the codes in Origin is the owner.  hth