I'm using Win 7 Ultimate. I just clicked on the system tray (notification area), then "Customise..." and set GWX to "Hide icon and notifications". No more nagging.
Same here on 8.1. (It's right-click on the System Tray of course, for people who don't know). Win 10 never gets mentioned any more.
The indispensable man or woman passes from the scene, and what happens next is more or less the same thing as was happening before.
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