Sims keeps crashing...

[Caspin]

Your sims will "fight more often" if you disable custom content? Gosh!

You are out of luck I'm afraid, as I don't know a whole lot of about Windows 7 (I have a Mac). Maybe someone who knows about Windows, or just knows more full stop, will log in and answer. In the meantime I suggest that you could do an experiment - temporarily remove all of your CC, then see if your game will run. If it will then you can blame your CC and try to work out which bit is faulty.

Presumably you are patched up to date and your computer has sufficient specs to run the game?