The same thing's happening to me too. Whenever I try to load a save, it gets stuck on the loading screen. If I manage to get it going by recovering older saves, my sim freezes all the time. I can barely save because I can't even make process. To close the game, I have to turn off my laptop. I can't just close it with Task Manager. I updated my game to the latest patch, I have everything, I always check for updates. I updated all my mods, I removed the TS4 folder from documents, it works without mods, but when I get my saves and mods back, it does the same. I don't know why, because as I said, everything I have is up to date.