I had changed my user account password on my iMac, but I don't understand why I should need separate passwords, that caused the spinning circle to hang. which caused me to initiate the response. I think it had a lot to do with Apple's policy of withdrawing coverage of assistance with IOS and devices more than 3 years old.
It also wouldn't or didn't recognise the newly created password when I clicked the padlock
in order to amend the paper size in the Printers & Scanners window. It seems that I will be forced to purchase a
replacement of my current iMac with a later model. Thanks a bundle, Apple!! 😉
P.S. The word 'hags' should have been HANGS, i.e. wouldn't disappear, and that I also couldn't minimise the window to the dock.