I left my computer for a bit and come back to find it in the recovery environment.
I tried the automatic repair options, startup repair, no change. I used the console to do sfc check, it did fix some files, but still no booting.
In the recovery environment, I tried to enter safe mode using the start up settings, I get the menu, it restarts but crashes before getting to the safe mode.
I tried to enable boot logging, but the ntblog.txt has not changed.
I don't have a restore point.
BCD looks good, but I did a rebuild, just in case.
Used DISM, /restoreHealth, nothing changed, still no boot.
Hardware all looks good. I swapped the graphics card, unplugged all usb devices, just to be sure, nothing helped.
Finally I installed another Win 10 installation on another drive, all hardware, drives and filesystems are good.
I would like to get a sense of where it is failing, preferably boot into safe mode, or failing any options, try an inplace upgrade, but AFAIK, it has to be started from the OS.
Any ideas what to try next?
CPU: i7 3970x MB: Gigabyte x79 ud5