Re: Sims3 wont launch with error appearing
@Czarpais Sorry, I got some wires crossed and meant appwiz.cpl. But you figured it out anyway.
Since it's a simple test, please create a new admin Windows account and try playing there. Make it local, as in, don't link it to your Microsoft account or any email address. You'll be able to (try to) launch Sims 3 without reinstalling anything. If this works, the problem is something about your main account; otherwise, it's more global. In the second case, please let me know what antivirus you use.