After some issues with a new Build of Windows 10, I rolled back to the previous version and now it will not boot, nor will the BIOS or UEFI screens appear. This dialog comes up:
After choosing OK, I get the following screen:
The hard drive appears on the list but when I select it I get the same message. I tried two different Windows bootable USB drives (Windows PE recovery drive created with Macrium Reflect, Windows installation disk) but they do not appear on the list. I then tried an Ubuntu boot repair drive, it showed up on the list and I was able to boot. The hard drive showed up and all of the data is intact. Running linux boot-repair did not resolve the issue.
So the bottom line is that I cannot access BIOS or UEFI and it appears that Windows boot devices are not recognized, but it will recognize linux boot devices. Any ideas?