Nine Steps to a Fixed Sims 3 Game

in Sims 3 Gripes, Sims 3 Lists, Sims 3 Technical Stuff

I wrote about getting a Qtcore4.dll error with my Sims 3 game last week and trumpeted my relief that I had fixed my issues when in fact, I hadn’t.

I am happy to report that I played Sims 3 last night and everything worked like it was supposed to work.

This is what I did to get my game back to good.

Step One: I uninstalled the EA Download Manager.

I did this by using Windows’s Control Panel and the Uninstall Program function. That completely removed the Download Manager with no issues.

Step Two: I manually removed all Sims 3 games from my system.

The Unistall Program function wasn’t doing the job for some reason so I followed the instructions posted on EA’s website regarding manually removing Sims 3 from my system. I didn’t not follow the back-up part since I was so fed up with my issues that I didn’t care about my saved games. I DID back up my Registry files and suggest you do the same thing since deleting Registry files can be a dicey thing and if you delete the wrong thing you’ll bork your system.

Step Three: I manually deleted the EA files from My Documents.

This is something I didn’t do after my initial uninstall of my Sims 3 games and it caused issues. Don’t forget to remove stuff from My Documents.

Step Four: I ran CCleaner.

I found a butt ton of Registry errors when I ran this program and deleted them all.

Step Five: Reboot

Kind of self-explanatory, don’t you think?

Step Six: I checked my Adobe Flash version.

From my understanding – and tons of Google searches – the Sims 3 Game Launcher is all about some Flash and if you’re not running the most recent version of Flash player, you might/will probably have issues. They’re on version If you’re not running that version, you can download Flash player version here.

Step Seven: I reinstalled my Sims 3 games.

Can I just say I will NEVER buy another Sims game via Digital Download? The downloads took forever and I have a super fast connection.

Step Eight: I reinstalled the custom content I love.

I play Sims 3 with game default skin replacements [Go AWAY PUDDING!] and wanted to make sure the future Sims I created were as pretty as my old ones.

Step Nine: I clicked on Sims 3: High-End Loft and crossed my fingers.

When, after all those hours of work, I got a black loading screen, I freaked out but the game did load and I was able to create a Sim – my three year old daughter helped – and everything worked like it should.

In the end, I’m pretty sure I had more issues than just the Qtcore4.dll issue, but this is how I got my Sims 3 game back to good.

If you’re having issues similar to the ones I’ve had, I hope this works for you as well. I know how frustrating it can be to really want to play Sims 3 and not be able to.

Happy Simming!

  • Pingback: Amy Tucker()

  • M W

    Lucky you, it didn’t work for me. EA checked my dx-diag-file, it’s good.
    I followed you’re steps, I have checked firewall, antivirus, re-installed several times, downloaded the QtCore4.dll file, I have tried succesfully on 1 other computer and unsuccesfully on an other computer; nothing works.
    I can only get sims3 to work, Do you think it could be because i don’t have the Adventures package ?


  • ianawi

    thank you so much for this! i had only updated once since it came out and then didnt play for a while… installed some cc and then tried to get the new update and it was just “NO”
    then i tried to install WA and it was just “NO!!!!”

    so i did all this and im on the post WA game update now with no errors so far.. so im pretty sure its working.

    again, MANY THANKS!

    • Amy

      Sweet! And I LOVE World Adventures. πŸ™‚

  • Pedro

    Thanks for the information, found your blog via google search for qt4core. Im having the same problem and im trying to fix it.
    Tks again

    • Amy

      I hope it works for you.

      All I know is it worked for me. Crossing my finger for you. πŸ™‚

  • M W

    Hai All
    I had to reinstall my operative system to make it work. When doing so it asked to do a backup on the “backup1” before reinstalling, so that I wouldn’t loose my files, I made it do that. Now sims works and I just hope it stays that way.
    Thank you for your blog and all the replay’s from the rest of you.

    Have a good game all of you.

    • Amy

      Holy crap monkey!

      You had to totally reinstall your OS?! Wow.

      I’m glad the game’s working for you now. It’s amazing to what lengths we’ll go for this game. πŸ˜€

  • Maurien Aragaki

    Hi, IΒ΄m from Brazil, so sorry for my bad english… lol

    I did 2 things to fix the same problem

    1. did not needed to unstill the sims 3
    2. downloaded the ea manager and installed
    3. made the updated of adobe air

    and it work it….

    • Amy


      Glad you didn’t have to go to all the extra effort. I’m pretty certain I had bigger issues going on than just issues w/Air and the stupid EA Manager.

      I wish I could have fixed my problems with two steps. I would have cussed A LOT less. πŸ˜‰

  • Lia

    Hey Amy, I tried this one too and nope, same problem. I’m at a loss what to do next. I am not the most tech savy person there is.

    • Amy


      I don’t know what to tell you exact that just sucks. I hate your game isn’t working for you. I wish I could come up with some way to help you out but this is all the tricks I’ve got.

  • Lia

    Hey! So i thought i’d try it again, so i uninstalled everything and redid the steps, like you have here and IT WORKED!
    I must of missed something out the previous times. But YAY. So happy.
    Happy Siming !! Thank you so much, this blog is a lifesaver xxx

    • Amy


      I was feeling like crap that you weren’t able to get it working; I really glad you’re back to good. πŸ™‚

  • Keesha

    THANK YOU! I was getting so angry because I couldn’t update My Sims game. I would try to download things & couldn’t. I followed your advice after only looking at one other-unhelpful website, and it worked. I did have to download the updates twice, but hey its SO worth it. Keep up the good work lol.

  • JEB

    A brief easier solution that may work for some (it worked for me):

    Right-click on your Sims 3 Launcher icon, choose “Run As Administrator”.

    It’s actually a problem with Adobe AIR and not the Sims 3.

    • Amy

      Unfortunately, running it as Admin didn’t work for me.

      Hopefully that will work for some people. Should probably be the first fix they try.

  • Louise


    Holy smokes! thank you sooo much for saving med day dude!

    Love you!

    • Amy

      You can worship me by tithing Kraken rum. πŸ˜‰

  • amyylynn

    hello, i tryed this method of fixing my game. it did help some, letting me play for a few minutes longer. but the black screen is still inevitable during gameplay. my screen goes black. and then the whole computer screen turns off (hybernate mode?) the computer doesn’t have this problem with other games of the sort.

    if anyone has any further tips or advice, please email me at shadowhearted18@yahoo.com

    thank you very much!!.

  • Jennifer

    Did as you suggested after getting the dreaded piece o’crap QtCore4.dll error, and *fingers crossed* things look like they are back to normal. I ended up completely uninstalling and reinstalling (saved my pretty Sims, but not my games, unfortunately). The only step I skipped was the registry cleaner (hoping that doesn’t cause issues down the road). I’m reinstalling my CC one piece at a time, and hoping that doesn’t blow up my game, but we’ll see! LOL Thanks for the help!

  • Emmi

    I uninstalled and reinstalled the EA-DM. Failed.
    ReInstalled AdobeAIR. Failed.

    Did both of them and then right-clicked on the launcher, and used “Run as Administrator” – worked absolutely perfectly.

    Thanks for creating the guides and the comments everyone, you saved me the painful process of uninstalling and reinstalling everything – that would have been a lot of lost CC

  • Rachel Jerry Young

    well, i did all the stuff you said, and while your parents are waiting to go out while your supposed to be doing homework but doing them is hard :L, but i tryed all the stuff and it didnt work, sims 3 is like ma fav game, i like literally cryed when i found out it wouldnt work on ma family computer after waiting 8 months for it to come out and then on the day saying there was another problem and waiting till june or whatever. then buying ma laptop out of ma own money so i can play it, when i got it it worked, bla bla got bored with it started playing it again, then yesterday i went to play it and the error came up D: 15 year olds worst nightmer :L so like, can you please help me :L xox

    • Amy

      Sorry. I have no idea what’s going on. I hate you can’t play Sims 3 but this is what worked for me. I hope you fix whatever’s screwing up your game.

  • kaitee

    why me update my the sim3 to 1.17 then the game say wan the sim3 disc

  • sara

    I really liked your blog! It helped me alot…

  • Logan

    Thanks for the great information! I would not have discovered this by myself!

  • Amber

    i now officially love you. my precious Sims 3 is working again. My Sims.. babies.. My best friends.. my soulmates.
    Anyway, Yay! thanks for the help!
    ~ amber πŸ˜€

  • JohnnyBOII


    that QTCore4.dll message pop up thingy was driving me crazy
    i was a minute away from obliterating my pc THANKS

    – JOHN

  • Some1special2335

    i can’t delete the sims 3 late night folder under electronic art…it just comes up with an error saying : ‘Access Denied
    Make sure the disk is not full or write-protected and that the file is not currently in use’
    and my disk isn’t even in my pc.

    • Some1special2335

      never mind i just restarted my pc and i could delete it :):) thank for this advise

  • Accy

    Whoa! I looked at this going, “I seriously gotta do all that work? D:”, then I started reading the comments and someone was talking about how they did two steps and one of them was updating adobe. . . And I realized. . . That I’ve been avoiding the update for adobe for like a year. . . xD
    And so, I decided to update it, and opened up my sims3 game launcher and walla! It works, now I can install all my games. . . xD *uninstalled them like a week ago and just been playing on her base game. . . >.>*

  • http://www.flashgamedownloader.com/ flash game downloader


    Its nice post guys and very helpful guys. your mine Steps are great guys for Fixing Sims 3 Game.


  • Sims4ever

    Very helpful! I heard that you could just download the new version of Adobe Flash without doing all that. I really don’t want to uninstall my games and reinstall them at the risk of losing my saved games. Please help!

  • http://Sims3Gamer.com/ Amy @ Sims 3 Gamer

    @Sims4ever Try downloading a new copy of Flash and see if it fixes your problems. As far as losing your saved games, you could always just pull them to your Desktop and then move them back if you have to uninstall.

    Good luck!

  • Sims4ever

    @Amy @ Sims 3 Gamer Downloading the new Flash didn’t help at all. I felt too lazy to do all nine steps, so i had a live chat with someone from EA she gave me a link to the EA website that had a bunch of download links based on what type of computer you had. (PC or Mac) I downloaded the patch and it worked! Here the link: http://support.ea.com/app/answers/detail/a_id/2232/kw/The%20Sims%203%20Town%20Life%20patch I hope this helped!

  • http://Sims3Gamer.com/ Amy @ Sims 3 Gamer

    Yay! I’m glad you got everything working. I probably should have asked what your specific issue was. I just assumed it was the Qtcore.dll issue. Lot of people have been having issues with patching Town Life and I would have been able to point you there.

    Have fun playing!

  • sarahr3685

    For a long time i have been able to play the sims 3 and ambitions with no problem. then all of a sudden it started the black screen. now it cant get passed the start menu. i updated my flash and that got me to play about 10mins and then it went back to black screen. i have uninstalled and reinstalled both games. please help!

  • basketcse40218

    Amy, I was googling GOD when I found this page. This was the only place I found anything on this issue. The Adoble Flash update was the culprit. I just spent about a month debugging, tweaking, cleaning and crying over my game. This was my last big issue and I just posted a long page of trial and error finds from crashing to bad cc on the ea games forum..
    I am basketcse40218 and I am grateful to people like you who document this stuff for us Simmers.

  • basketcse40218

    Hi again, Did not think to do this during my post. SoΒ here is the ea forum link about issues I had that are common and the fixes that may help folks:

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