Re: Sims 4 won't launch
Try right clicking the game in Origin, and choose 'repair game'.
If that doesn't work could you post a DxDiag?
Please follow this how to on how to gather your DxDiag.
You can post the DxDiag by using Pastebin and share the link with us in this topic. Or paste the full thing in between spoiler tags.
Don't paste it directly into your answer, because that won't fit.