Hi Serega,
Thanks for the extensive reply, but I have a big problem.
It seems you cannot uninstall .net in windows 10.
I have looked through the remove apps in control panel and it isn’t there.
Apparently in windows 10 they made .net 4.6 part of the operating system, and it cannot be removed.
Which means I can’t install the older .net v4 and I can’t install the sdk 7.
I couldn’t try this out straight away however because my render took 20 hours.
I will do a bit more reading up. I may find an answer.