Re: Sims 4 resetting windowed full screen every exit

@MiladyRevenwyn  Do other changes to your in-game graphics settings stick?  Please try changing something and let me know.  Have you installed any other app that might be trying to "optimize" your in-game settings?  For example, Nvidia's GeForce Experience has a check box to optimize game settings, which really means GFE chooses your settings based on your hardware and its knowledge of a particular game.  You might not be aware you even have such an app; other examples include Razer software and possibly a tool like MSI Afterburner.

Please also run a dxdiag and attach it to your reply.

https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/