I have searched for answers to this but none are exactly like my problem that I have seen, others can still play the game. Basically I uninstalled Sims 3 and everything to do with it today as I wanted a clean install due to it slowing down and such. But now I have uninstalled it and re installed it a million times, each time I try to play it it tells me the launcher has stopped working and needs to close. I can't even get to play the game. I have no custom content installed or anything. My computer exceeds all the specifications and I'm running Windows 7. What can I try next please?
To be honest, the launcher really isn't useful. I don't know how to make it work, but the simplest way round this issue is just to right-click your Sims 3 shortcut, hit Properties, and in the Target box replace "Sims3Launcher.exe" with "TS3.exe". That'll run the game, bypassing the launcher.
What I lack in decorum, I make up for with an absence of tact.
Then you have a different problem. Try the above FAQ first, then post your Game Help:System Specswiki if you're still having trouble. :)
On occasion you might be asked to do a long FAQ - please make sure you do all the steps and don't just skip over them. You'll often find that these long FAQs have all the details you need. If nothing in the above FAQs fixes your problem you may post again detailing exactly which you have done and which steps failed.