Re: Sims 3 loading bar won't progress past startup screen
@colorclaw That guide is really long (and has a lot of irrelevant or only rarely relevant information), so I'm not going to read the whole thing. Instead, I'll start with the most basic suggestion, and if you've already done it, just let me know. Move the entire Sims 3 folder out of Documents\Electronic Arts and onto your desktop, which will allow the game to spawn a clean folder the next time you open the launcher. Don't add anything to this folder; just see whether you can get far enough to load a save.
If the folder copies rather than moving, please let me know.
If moving the user folder doesn't or didn't help, please run a dxdiag and attach it to a post.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/