For those that do not want Win 10, there is a utility program, "GWX Control Panel", to disable the update (so it claims).
My operation OS is Win 10 and I have no problem with that. However, I have a dual boot with Win 7 as I need that for an RS232C interface that will not work with Win 8 or Win 10. I've installed the utility on my Win 7 system, however it was just yesterday so I'll have to see.
For those that want to try it (I don't guarantee anything other than I saw a reference to it on a site and I've downloaded and installed it on my Win 7).
http://blog.ultimateoutsi...ermanently-remove.html