Hi all,
This may be of use to some on here trying to solve the 0xC1900101 error - which I had as well.
What I did to solve it:-
Ran DISM to check for errors with current windows install - came back fine.
I then used msconfig with admin privileges to stop all running services apart from Microsoft services,
and I also then stopped all start up programs from running via Task manager.
I then tried installing using the iso file and running the setup from the iso.
I was able to update to build 10.0.22000.132, and once this was installed I then ran windows update
which updated me to build 160.
Have not had an exhaustive look/try of the system yet but all seems well. I should add that I had to add a TPM module to my machine otherwise it would not install. For those wondering I have a Intel 5960X cpu and 32Gb ddr4 ram.
Hope this helps some of you.
Mark