@betharies2 You can attach a dxdiag to a post here. There's a button that says Browse (or similar) below the text field; click on it, navigate to your dxdiag, and attach it. You need to use Reply, not Quick Reply, to get the option to attach files.
@betharies2 Uploads weren't working on this site for a day or so, but they're fine again. It's interesting that deleting everything worked. If and when you do restart your computer and can't get back into the game, try moving your Sims 4 folder out of Documents\Electronic Arts again and see whether it helps. Your new saves won't be deleted, they'll just temporarily be inaccessible by the game.
@betharies2 I have no idea either, to be honest. But if the game works now, no reason to worry.
