If Raspbian required a licence key to upgrade you would have had to install the earlier version first to install the later. Your are conflating licensing issues with ease of installation.
If this, if that. What are you talking about? Can we stick to reality?
Licensing issues are a fundamental part of the problem here.
If Raspbian required a licence key I would not be using it and I suspect no one else either.
There are plenty of ways to install and activate Windows 10 without having to install an earlier version first.
I'm glad to here it.
I did ask you already but I can try again. Given a machine with a fully paid up Win 7 license and blank disk drives, how do you get Win 10 installed on it?
I am no Windows guys so despite my extensive googling around I did not find a solution better than the one I described.
Maybe you have some particular reasons for doing it the way you did, couldn't do it how others would, couldn't just plug an RJ45 in and get a network connection that way and avoid having to find drivers, but most people don't encounter the difficulties you faced.
See above. A machine with no disks and no OS is not going to be talking over that RJ45. Except for the BIOS trying to boot from the net at start up if that is possible and one configures it.
Please do tell how you would have proceeded from there? If there is an easier way I would like to know.
Similarly if you had wanted to keep what you had under Jessie of Wheezy without copying stuff off and back later, you would have had to upgrade to Stretch rather than making a fresh install of Stretch.
Now you have changed the subject to that of ones own files and backups etc. God help those that live without backups.
You are not comparing like to like.
That is true.
One is very secret, expensive and complex to install.
The other is very open, free (not just in money terms) and easy to install.
I guess that was my point.