Forum Discussion
I finally figured it out on my own!
Manually uninstall the Origin your Sims game is trying to download when you load up the game--this apparently is not the version of Origin that needs to be installed.
To uninstall I normally just type in "uninstall" into my windows search bar and scroll until I find "ORIGIN" and click "UNINSTALL ORIGIN."
When you completely uninstall DO NOT try to download the game yet. Go to WWW.ORIGIN.COM and download the application directly from the site. (It is recommended that you download this application on the primary account of your computer to avoid more issues). This way you get the updated version of Origin. After Origin completely downloads from the website THEN you can insert your game and it should work just fine.
I hope this helps, I was very frustrated and couldn't figure it out because the disk was automatically downloading an incorrect Origin application and doing it through the website finally fixed the problem.