I keep getting messages from Microsoft to say they have tried to install the update but it was unsuccessful 
I wouldnât worry about it eventually it will succeed.
Me too.
However, as Bruce says, I have every confidence that theyâll discover a work around one day.
Theyâll never relinquish their control of our computers!
JB 
it feels good thwarting them while it lasts
Indeed it does, though I donât particularly enjoy doing it. It is more about trying to avoid changes being made that I really donât need and which usually seem to make compromises rather than improvements.