Right-click on Origin and select Run as Administrator.ġ. Try running Origin and Game as Administrator. It's on by default and can cause issues, if you have multiple Windows user accounts.Ħ. In Origin - Application Settings - Start-up options - turn this off. Make sure that Origin does not automatically open with Windows. If you'd like you can copy the Sims 3 folder to a USB key.ĥ. Meaning that your saved games are safe, they won't be deleted. It does not make any changes to the saved game files. Do note this repairs the game's install files for the actual game. In Origin > Games Library, right-click on Sims 3 and select Repair. In Origin, go to the Games Library > Right click on the Sims 3 > Select Game Properties > Advanced Launch Options > In the Command Line Arguments, add the following text: If using Windowed mode, try Fullscreen mode. Try playing the game in 'Offline' mode - In the Origin Client, go to the Origin Menu and select Go Offline.ģ. This deactivates Origin In-Game, as it has been known to cause problems with games.Ģ. Open Origin, Select Origin > Application Settings > Origin In Game tab and click the on/off switch to disable Origin In Game. These tips work for both the Sims 3 Stopped Working and Unable to Start error.