Well, after spending a total of three hours Tuesday evening 8 hours yesterday (Wed 23rd June) "chatting" to micrsoft's support agents my machine is now up and running, fully updated. It took a total of six attempts, eight support agents and two rebuilds from my old image tp get here. It eventually came down to giving up trying to make it work and doing re-install of windows. Of course that meant wiping all my apps, but that's no big deal, I had them all to re-install, it just took a but of time...
There was something in my old OS the update just didn't like, but it's gone now and everything seems to be OK - except PDF's seem to lock up when viewed in Chrome and Brave, but its only happened twice today with the same document so time will tell.
The weather thing seems to work though, which is nice but pointless.
But seriously, what a mess. I bet there's loads of machines out there now which are totally useless and some pretty pissed off people with them. The support service sort of works if you're determined enough (and full credit to the last guy who really gave his all to sorting it out). Type help in the search bar and click "get help" and enter the chat room. You do have to get past the robot first though, the key to that is just answer "no" to its questions.
So to everyone suffering this infernal update, just re-install the windows and reload all your software. What could be simpler?
<sigh>
Thanks Micro$oft. Linux is looking very tempting.
One suggestion though - it might be an idea to put something very clearly on these forums to make it clear this isn't a microsoft site with actual microsoft employees to shout at.