@Dr_Houdini The Sims 3 crashes in your dxdiag could be related to the graphics driver, but there could also be an innocuous explanation. Please try forcing the game to launch in windowed mode. Go into Documents > Electronic Arts > The Sims 3, open options.ini, search for fullscreen , and set it to 0 (zero). If this works, you can go back to fullscreen at the Main Menu, but at the same time, change the in-game resolution to 1920x1080 to match your monitors.
If that doesn't help, please do a clean uninstall and reinstall of the graphics driver, as described here:
https://crinrict.com/blog/2019/02/clean-re-install-of-graphics-drivers-with-display-driver-uninstaller-ddu.html
You can get the newest Nvidia driver here:
https://www.nvidia.com/Download/driverResults.aspx/209266/en-us/
Run the installer as an admin: right-click the download and select "Run as administrator." Restart your computer after installing and before trying to play. Also, if it doesn't work, try forcing windowed mode again. Sims 3 will detect a different driver version and reset options.ini, undoing the change you made previously.
The purpose of moving and renaming the Sims 3 user folder was to prevent Revo from deleting it. That's only relevant when you have saves or other content you'd like to preserve, but better to mention it when it's not necessary than to have someone inadvertently delete their saves.
@jborbs22 I would very much like to see a dxdiag. Please follow the instructions earlier in the thread.
@roberta591 As always, if .NET Framework 3.5 were not installed, the launcher wouldn't open. The original poster's launcher does open. Also, I don't have OneDrive enabled and only get a notification about it after a Windows feature update, which is not really nagging considering how infrequent these updates are.
