Well, this odd. I opened Windows Update and there was another important update to be installed; it was not KB3035583. I clicked on update, rebooted, and voila when the laptop started up again - there was the Win 10 icon in the tray. So I went back and looked at the update history. Although this was not true thirty minutes ago, now the update list shows that the KB3035583 was in fact installed on July 17. What??? I carefully checked for it before posting this new thread this morning and it absolutely was not there. I had also rebooted a couple of times since July 17 after running updates. Crazy.
So next question - I carefully read the Microsoft info after clicking the Win 10 icon. It absolutely does not tell me exactly how to reserve Win 10 or if I have successfully reserved because the icon appeared. Do I need to do anything now? It looks like Microsoft will just download it automatically on July 29 and I can click to go install it then. The "instructions" from Microsoft which started appearing about three weeks ago are really bad; they absolutely do not tell you clearly how to reserve Win 10.
Do I need to take any additional action now?