Re: Sims 3 Frozen Can't Close
@Splotchish If the game is still running (but frozen), try to bring up the Task Manager: click crtl-alt-delete, select the TM, click on Sims 3, and End Task. If you can't see the Task Manager, you can use crtl-alt-delete but log out of your account instead; this will close any running programs.
If your computer isn't responding to keyboard commands at all, it's frozen and needs to be manually shut down. Holding the power button will do the trick.
As for why your game keeps freezing, there are a number of possibilities. Please start by running a dxdiag and attaching it to a post.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/