But it doesn't stop there. I unchecked the option and right clicked it to "hide this update" and proceeded to install other updates. When it rebooted I discovered that there was another update that needed to process. But there was an "optional update" pending as well. Lo and behold, the "Upgrade to Windows 10" option was there again and it was checked by default after I went out of my way to disable this option!
This is a new low for Microsoft. The prompts for reserving my copy were annoying enough but eventually they went away. But in this case, I have made a positive effort to tell Windows Update that I do not want to install Windows 10. And Microsoft has not only deliberately ignored my preference, they did so in a way that deliberately tried to obfuscate the choice being made for me. This is out-and-out deceit. This is entirely unacceptable.
Has anyone else seen this? Is there anything else that can be done to prevent this "option" from showing up every time? Or at least, is there a way to default it to being unchecked? I mean, besides wiping out Windows and replacing it with Linux? Which is an option I'm considering.