I installed this to a new SSD easily. After rebooting and checking everything a few times... I let it run for about 5 days while I reinitialized a couple of 6TB HDDs ...
When that finished up... I tried to reboot, but keep getting the same error message to "insert bootable media"...
Of course, I entered the uefi system and checked that boot priority was correctly set and reset the optimal system defaults... As it was when it worked.
For some strange reason something is deleting key startup files in the hidden efi system partition, I think it's the boot ini files, so the system cannot boot to Windows.
This is strange because I tested it right after first installing the new OS to reboot it several times just to make sure there were no changes happening to the system files ...
Because......The same thing happened with a Frankie OS... After booting okay several times, a few days later, I saw a bug delete system files and it failed to reboot...
Now, I have to play with the SSD, reformat and install another OS...
Maybe I'll just mirror my old one from my old PC. But it's full of junk and I wanted a clean start...