Re: [CC and Milestones, error code 110-578ef827] Stuck On Loading Screen Sims 4

@l0grimreaper0l Try this test, please:

1. Create a new user folder (your old files will still be available to put back!): https://sims4.crinrict.com/eng/2014/09/resetting-the-game-to-factory-settings-without-reinstalling/
2. Start Sims 4 and start a new save.
3. If that works, exit then copy your old save files out of your old Saves folder into the new folder.
4. Start Sims 4 and use "Load" to try to load that save file.