I can't verify if what I say below is still true, being an individual who despises windows 10 I haven't tested it myself, but I did see and hear a lot of people reporting it many months after the free "upgrade" period ended.
It seems there exists a deliberate loophole left open by MS, they are afterall desperate to gather users onto 10, where ms have a webpage (don't remember where) that allows anyone to upgrade if they tick a box somewhere stating that they are in some way disabled. I think ms created the page saying it was for anyone who was using some sort of accessibility software which was only 7/8/8.1 compatible at the time that the free period ended but wanted to upgrade when the software they needede was released in a 10 compatible version, but I woulld suspect that what ms really wanted was to still be able to gain users on 10 while still being able to create the sort of "hurry up and do it now" responses that a deadline would cause in the majority of the population. This was reported on how to geek a while ago, so you'd need to search through their site for more info.
Ms is also, for those of us who blocked it every time back in the free upgrade period atleast, distributing the kb2976978 update, though the real nasty (KB3035583, GWX) is something I haven't been offered for atleast 9 months now.
Edited by rp88, 05 August 2017 - 11:50 AM.
Back on this site, for a while anyway, been so busy the last year.
My systems:2 laptops, intel i3 processors, windows 8.1 installed on the hard-drive and linux mint 17.3 MATE installed to USB