[11.3 install error - LaunchBox no longer opens]

5 hours ago, Jason Carr said:

Gotcha. It should be an easy fix, in theory. Just delete the My Documents\Emulators\LaunchBox\LaunchBox folder. Then run the latest beta setup and make sure to install to the correct location.

Thanks for your help. All is right with the world again

[11.3 install error - LaunchBox no longer opens]

29 minutes ago, Jason Carr said:

If you don't have any data, it sounds like you installed it to the wrong place. Usually this happens when you accidentally install it into a folder inside of your LaunchBox folder. What folder did you install LaunchBox to? Do you have a LaunchBox folder inside of that folder?

Crap. Yeah, that looks like the issue. Right now it's installed inside a launchbox folder inside the launchbox folder. Like this: My documents/Emulators/Launchbox/Launchbox

[11.3 install error - LaunchBox no longer opens]

I tried all the things you posted here (.net framework repair, re-install 11.3, and the beta) to no avail. I got launchbox to start but it was basically like starting over. Asked to import roms. I did and it was able to play, but without my old steeings. And bigbox did not start at all. Now, neither will start. I see in my launchbox folder, there is a back ups folder. Is there a way to restore to an earlier point using those? And if so, how do i do it? 

[11.3 install error - LaunchBox no longer opens]

I just experienced this exact same thing. Rebooted pc but neither launchbox nor big box will open at all