Re: can't load sims 4 - error d6f91ffb:29f00e76:00000000

someone had same problem with demo  this worked for them

I would suggest trying to start the demo after booting your computer in safe mode with networking or reinstalling while in safe mode if that doesn't help:

http://windows.microsoft.com/en-ie/windows/start-computer-safe-mode#start-computer-safe-mode=windows...