Please answer the following questions: (Thanks to Crinrict)
- What's your operating system?
- Does the launcher start?
- Are you getting any error messages?
- How far do you get, try to describe what happens in as much details as possible (without getting too lenghty)
- Do all installed games show up in the Origin client?
- Which base game version do you have: http://sims3.crinrict.com/en/2014/02/sims-3-base-game-versions.html
- Which Security Software are you using (Firewall, Antivirus)?
- Do you have the disc or download version or a mix?
- Do you have any files with xctp in your documents\electronicarts\thesims3\ folder ? (those are crash logs)?
- It's also good to include your DxDiag: http://answers.ea.com/t5/The-Sims-3/HOW-TO-DxDiag-for-Sims-3-PC-Only/td-p/1049584
See if this helps as well: http://answers.ea.com/t5/The-Sims-3/ISSUE-Sims-3-Minimizing/td-p/3230209
