Re: sims 4 crashes as soon as I'm out of CAS

@thecolourviolet  The driver for your Nvidia graphics card is from 2016, and the driver is causing your Sims 4 crashes, at least the most recent ones.  So please update the driver.  You can find the newest version here:

https://www.nvidia.com/Download/driverResults.aspx/145874/en-us/

It's a little old but should still work better than your current one.  When installing the driver, run the installer as an admin: right-click on the download and select "Run as administrator."  Choose the custom route and check the box to perform a custom install.  Restart your computer when you're done.

You can also test your old Sims 4 folder, or the content inside it, but it sounds like some of that content may be problematic as well.  So I'd suggest moving over only the files you absolutely need to keep—saves, Tray items, screenshots if you want to keep them—and letting the game generate new copies of everything else.  Test your mods and cc carefully as well.