I can use the OS from a Flash drive just fine. It installs fine until the very end where the window pops up and says to power down etc. When I do, I get an “Endless” splash screen that just sits there and does nothing. I’ve let it sit on the splash screen for 30+ minutes and it does nothing. When I reboot I get a BIOS type window that says there is no OS. I then install Mint and it reboots fine. I’ve done this three times all ending the same, so I seem to be missing something during the install.