Re: The Sims 3 doesn't launc on Win11! Could you help me in the solution?

@vgreg92  Please create a new admin Windows account and try playing there.  Make it local, as in, don't link it to your Microsoft account.  You'll be able to (try to) launch Sims 3 without reinstalling anything.

If you do use a third-party antivirus, disable it before creating the new account, and don't reenable it until you've tested Sims 3 at least once.