Re: Sims 3 Pets won’t install
@B1u3Chips Did you register the product code within your EA App game library? If so, click Sims 3 > Manage > Manage Add-ons, and let me know whether Pets is showing on the list. If it is, but the line underneath it says in-game content, then the only fix aside from the app recovery, which you already tried, is uninstalling and reinstalling the entire game.
If Pets has a Download button, but it doesn't work, please try the Origin workaround described here:
https://answers.ea.com/t5/Technical-Issues-PC/Sims-3-DLC-stuck-on-preparing/m-p/12662918#M259111