The Sims 3 Launcher Won't Launch

AvivaYalla  Please provide a dxdiag.  Hit Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop.  From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.

puzzlezaddicthere is my dxdiag

Thank you so much for the help! This has worked to get the launcher open for me.

Okay so I'm having this EXACT issue - I tried what the "marked as solution" comment suggested, and it is still happening. Have uninstalled, reinstalled, repaired, removed everything, literally not one single thing I've tried has made the game open. Always just disappears, and then EA App reopens. I've never been more frustrated in my entire life!! :( 

Same issue. All was fine until about 6 hours ago.

rubyredinstead Nursey318  As a test, please try playing in a clean user folder.  Move the entire Sims 3 folder out of Documents > Electronic Arts and onto your desktop.  When you open the launcher, if it opens, a clean folder will spawn with no content.  (Your saves and other content will be intact in the folder you've moved but temporarily unread by the game.)  Don't add anything to the new folder yet; just start a new save and see how it runs.

If you still can't play, please provide a dxdiag.  Click Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop.  From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.

I did that along with other things. BUT, NOW the EA app and launcher aren't synched or something. I can't play because my installed content is not showing up and the launcher won't allow me to do anything, ie. change password, etc.  I can log into the store, but when I try to connect the two it won't let me. Also the front screen of launcher is completely blank, but all other tabs remain normal. Was I hacked or something?

Nursey318  The blank launcher is a common issue.  Please clear Edge's Internet Explorer-mode data, as described towards the end of this article:

https://support.microsoft.com/en-us/microsoft-edge/view-and-delete-browser-history-in-microsoft-edge-00cf7943-a9e1-975a-a33d-ac10ce454ca4

For the content not showing up, do you mean your expansion and stuff packs, or do you mean your Store and or custom content?  When you moved the Sims 3 user folder, you removed (but didn't delete) any content you previously installed through the launcher.  Your expansions and stuff packs should still be present though; the user folder has nothing to do with whether these load.

Expansions are there. Store items not there nor can I download them atm. I did the un-sync  and history things. Nothing changed. I am just frustrated. All three of my games are broke in one way or another. The Sims franchise is dead to me.