Dear Don:
Thank you for your very detail answer and options. Unfortunately or fortunately ??, finally I did not have the opportunity to try any of them. After 3 or 4 times keeping the laptop unplug and wifi disconnected for weeks to isolate the equipment, apparently last time it worked; I guest it was equivalent of your third suggestion, the hard shutdown. Not idea why it did not work the first times. I did follow your advise and wipe clear the cache.
As a matter of advise, I do remember that in trying that popular indeed website indeed, I realized microseconds after hitting enter that I misspelled it as indee.
Thank you again to you and this friendly community
Diaz-G