Well, I spent all day yesterday with my laptop updating to Win10, then, when I tried to close it down, it spent at least 3 hours downloading 130 updates.
When I switched it on this morning, it took about an hour "configuring windows" including closing down and restarting a few times.
Finally it booted up.
Guess what, it is still Win 7 !!!!!
I'm totally baffled.