Hola fellow frustrated sims lovers, I suggest you all scroll back up through this thread, you will find even some very tech savvy dads had this issue and its Not an Easy Fix.
We all came to the conclusion that on windows, It would appear to be a PERMISSION issue, between windows and Origin.
some running on Mac's have had the same issue but they often find a fix.
Even We, tech savvy from the Jurassic era, who run windows 7, did not find an easy solution.
I have done everything You are being advised to do and more, and I spent weeks on it in my spare time,
DONT; Talk to EA support, they are all fresh out of PC kindergarten and have no idea.
DONT reinstall the game,
DONT restart your computer
DONT reinstall origin
DONT fiddle with your antivirus...
The answer is THE sign in on windows, most of us had to make a new account on windows, sign in on that, and then we could set origin up, set the game up, and then play.
I must say however, I am one of the few for whom this didn't work, and I believe its because I tried to take short cuts, in the end i gave up, put sims on an OLD spare pc and off she went.
This is the point to remember,
Origin needs to see that only the New account holder of windows is playing.
This should all take less than 1 Hour.....
Instructions: uninstall ONLY Origin off your pc
close all your browsers /games/ etc
clean your PC with cc cleaner, dont run anything while you clean, patience peeps.
Reboot
then sign in as a new account holder on WINDOWS (pick an easy password to remember and write it down)
Download Origin and try again.
this method worked for 90 percent of players, Dont Take SHortCuts in the process....i mean dont, or your wasting your time.
good luck fellow chumps, and let me know how you go...