I noticed after rebooting that I only had the Qubes boot menu option, Windows 10 was not available. In an effort to set things back to the way they were I removed the Qubes partitions using Ubuntu live from usb. (I don't remember at this point, but I think I may have changed my settings from UEFI to Legacy before installing and then changed it back after removing Qubes.)
Now Windows won't boot and the laptop doesn't allow me to add it to the UEFI boot menu via the BIOS screen. During POST I get "No bootable devices found" even though the SSD shows up in the information screen. I have tried installing a dual-boot with Ubuntu but continue to get the startup error that there is no bootable device. Ubuntu installs, but then won't boot up.
It seems to me, and I'm just getting up to speed on UEFI, that there is something similar to the master boot record missing. I've tried the solutions online that require booting from the Windows 10 installation USB and then attempting to repair my copy of Windows but none of them have worked. I'm out of ideas now and just about ready to format the drive.
Has anyone else experienced this and if so, how did you recover?
Let me know if you need more detailed information and I'll provide it.
I suspect that you can probably choose to boot Windows from the BIOS boot sequence menu if you have both legacy and UEFI turned on.
Oh, one more thing. If I *don't* hit F12 during boot, and I have the external hard drive detached, then it comes up with the "no boot device" error. It will boot through the USB using legacy mode by default, but will crump if the drive isn't plugged in. Then I have to hit return (which reboots the machine), hit F12, and choose Windows or KDE neon from the boot list. I'm sure there's a way to tell it to use KDE neon/UEFI by default, but I don't know what it is.
Thanks Mike,
No need to post your solution, although it may help others. I ended up wiping the entire drive and installing Unbuntu 17.10 and putting Windows 10 in a Virtualbox VM.
Scott
Hey Mike,
If you could find that email that would be fantastic. I have a similar problem on my Dell XPS 13 9343 as described later in this thread: https://groups.google.com/forum/#!topic/qubes-users/G6lMHyD16xc
Basically, I can only get Qubes 4.0 installed using Legacy boot, which is fine with me, but I can't get it to boot. The machine reboots itself every time it tries to boot Qubes, no matter if I install on an internal or external SSD. I would really love to get it working.
Tom