Re: Sims 3 freezing up 2nd monitor

idk if i attached exactly what you were wanting, but my game is in windowed fullscreen mode. im not too sure what's causing it to freeze like that.

@qtmoosie  There's nothing obvious in your dxdiag, so some experimentation might be in order.  First, please play in windowed mode, not windowed fullscreen and not with any third-party app handling this setting.  (That means no Smooth Patch Borderless setting, no Windowed Borderless Gaming, nothing else that would override the game settings.)  Just use the in-game setting and see how it goes.

If that doesn't help, try setting your secondary monitor to run at 60 Hz rather than 144, just as a test.  The option is under Windows Settings > System > Display > Advanced.  Restart your computer after changing the setting and before trying to play.

If that doesn't help either, please try playing in a clean boot:

https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd

The one service to leave enabled is the EABackgroundService, which the EA App needs in order to run.  Disable the rest as described.

When you reboot your computer, go through the Task Manager's background processes list shutting down any service that doesn't absolutely need to be running, for example anything from MSI Afterburner to RGB software might still be enabled.  If you accidentally kill a critical process and it doesn't restart on its own, just reboot your computer again.

Don't open anything other than Sims 3 and the EA App while testing, not even a browser window.