I have a similar problem. The config folder looks empty, even with 'view hidden' on. Oh, no, check that, the config folder is now completely missing. I tried booting into safe mode, but it would'nt go past bios without coming up boot failure. Put the usb stick back into my windows machine and it says there's a problem with your usb drive. I press yes to fix problems. Now usb only has efi folder left and a bunch of files. We're going from bad to worse. What next!? how do I keep license for next attempt, there is a license.txt, but it has nothing in it.