Re: The Sims 3 Causing PC Shut Down
@cloudygreyskies Do you have software from Lavasoft installed, maybe an adblocker? All the errors in your dxdiag are related to a Lafasoft service, so it's a good idea to update or uninstall and reinstall it, or don't reinstall it if you're not using it anymore.
However, these errors are unlikely to be related to the computer shutdowns. Those are usually caused by a hardware or critical software error, either a critical event that makes Windows initiate an emergency shutdown (the BlueScreen of Death), or a hardware component not working properly and taking the system down with it. It's impossible to tell without more information though.
Please open a File Explorer window, click This PC, and search for *.dmp and then *.mdmp (an asterisk followed by the file extension). I'd like to see at least two or three dump files, if they exist So please upload any you find from the last few times you've played Sims 3 and your computer has shut down; you can look at the modified dates on the files to see when they were written. Specifically, right-click on each one, select Copy, right-click on your desktop and select Paste, then zip them together, upload them to a free filesharing site (Google Drive, Dropbox, etc.), and link them here.
If you don't find any such files, let me know. It could be that the shutdowns aren't creating any files, which is useful information. But if you have a cleaner app that deletes temp files, please disable it for now—it's more important to get this info than to keep your hard drive clean.