This morning I was getting a full crash of Windows 10 TP Enterprise. Error messages were appearing showing that the Net Framework needs to be reinstalled. So, first action were to make Screenshots from that messages and kept them on HDD, the C-Drive to be precise, which were wrong, I've to admit. Then I was try to run SFC from elevated Command Prompt: Impossible!! Try from Powershell and that also didn't worked. Computer restarted and that was it! I was try to do an Re-Install from Original ISO, which was been done but resulted in an black screen. I wasn't able to run that Repairing. Now I'm in the process to create an Windows to Go drive on an external Acer 500GB USB 3 HDD with my laptop and will use that one to start on the crashed desktop for to get access to the saved screen shots, which I'll post later in this topic. I further will still try to repair the crashed windows 10. and just to tell, even the drive with installed Windows 8.1 Pro are crashed on that same computer now because first I was try to boot from that OS and couldn't too! For the time being, I'd disconnected that HDD with 8.1 now. Will later post the screenshots and what happen further.