Re: Sims 4 not working on Windows 11
@JosieMonroe Sorry I didn't specifically mention the clean folder before. I'd suggested it to someone else earlier in the thread, but I guess not to you.
Anyway, this means that something in the folder you've moved is the issue, and you'll need to find out what. Mods are the most likely cause, so test those first, or else just download new versions confirmed compatible with the current patch level. Your saves are probably fine, but test those too, just in case. As long as you don't save your progress with your mods and cc missing, the content will show up in the saves again once you've added it to the new Sims 4 folder.
If you have a lot of mods or cc, the 50/50 method can make testing much more efficient:
https://modthesims.info/wiki.php?title=Game_Help:Finding_Problem_Custom_Content#The_50.25_Method