Re: Saves & Mods are gone! Sims 4 keeps starting up as a new game
@Jennarogers2197 It sounds like you were briefly running the Legacy Edition. It has its own user folder in Documents\Electronic Arts, and that folder wouldn't contain your saves or mods.
You should be able to switch back to the 64-bit version in Origin though: open your game library, right-click on the Sims 4 icon, select Game Properties > Advanced Launch Options, and choose 64-bit from the dropdown menu. If you don't see the option, try repairing the game again. If you still don't see it, temporarily disable your antivirus, repair yet again, and then set exceptions for Origin.exe and TS4_x64.exe.