Re: Lost everything in update
@lillameetamart It sounds like your old saves are still there; the question is why they're not being read by the game. Before you do anything else though, back up Saves and Tray—these are the folders you'd want to back up regularly anyway.
Please post the full file path for these Saves and Tray folders here. When you highlight each folder in a File Explorer window, the path should show above the list of files.
Then open Sims 4, click "Load Game" if it's there (even if it only lists the save you just created), then hover over the folder icon for one of the households. You should see a file path for the location of that save. Please post that here as well.