Re: Re: Sims 3 launcher won't open and reopens ea app
@Sherinicole Please create a new admin Windows account and try playing in that. If the problem is on your main account, rather than a more system-wide issue, this should work. Make the account local, as in, don't use your Microsoft sign-in, and don't sync with any other services you normally use either. You'll be able to (try to) launch Sims 3 without reinstalling anything.
If you happen to use a third-party antivirus, please disable it while you're testing. As long as you're not doing anything else on your computer at the same time, you should be safe.
If that doesn't help, it's back to system issues, and frankly it would be fastest to just do a repair install of Windows, as described here:
https://www.tenforums.com/tutorials/16397-repair-install-windows-10-place-upgrade.html
This shouldn't delete your data, but if you get to step 13 and are NOT asked to keep personal files and apps, back out and start over. This is the cleanest copy of Windows you can get short of a total wipe of your system (which I'm not saying you need to do; it's just for reference), so it should address a number of potential causes at once.