Re: How do you uninstall Sims 4?

Open your Origin-client and go to game library (in the menu to the left), there you'll find The Sims 4.
Click the "sims 4-box", and the game will pop up in the client. There will be a big button saying "Play game" .
Underneath it there is a little cog/cog-wheel (?). Clicking that will let you choose to uninstall the game! 🙂

Included a picture, my client is in Swedish though sorry 🙂
But I think you'll get the point!

Good Luck!