The Sims3Launcher.exe is not a valid Win32 application (4 Megan)

Hi Megan :)

Something similar happened to me in the past with another program. Here is what to do to solve it...

#1, Thoroughly uninstall The Sims 3 using the free version of "Revo Uninstaller". Be sure to use Revo's Advanced uninstall. The video at the end of the article linked below will show you exactly what to do, step-by-step
http://www.cleartechinfo.com/Learn-How-To-Uninstall-Software-Windows-Rev...

#2, Restart your PC after you have completed uninstalling Sims 3 with Revo Uninstaller

#3, Use the free "CCleaner" to clean up any leftover file junk that may cause system errors when you reinstall it. Be sure to use the "Cleaner" and "Registry" options. The video at the end of the article linked below will show you exactly what to do, step-by-step
http://www.cleartechinfo.com/Learn-How-To-CCleaner-Clean-Optimize-Free-U...

#4, I have seen a lot of Sims 3 errors fixed after fully updating Windows using Microsoft Windows Update. You did not post your PC specs so I am not sure what version you have. I created 2 tutorials. 1 Shows you how to update Vista. The other shows you how to update Windows 7.
Vista - http://www.cleartechinfo.com/Learn-How-To-Update-Vista-Using-Windows-Upd...
Windows 7 - http://www.cleartechinfo.com/How-To-Update-Windows-7-Microsoft-Windows-U...

#5, Install Sims 3 again from scratch. After the install update Sims 3 to the latest updates/patches.

#6, Restart your PC after the updating Sims 3 then attempt to play it again

Reply

The content of this field is kept private and will not be shown publicly.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd>
  • Lines and paragraphs break automatically.

More information about formatting options