http://www.howtogeek.com/228551/how-to-stop-windows-7-or-8-from-downloading-w... 
You have heard Win 7 people talking about MS stuffing Win 10 down their throats and
then starting to charge them money for One Drive 5 gigabyte drive space overages that they never asked for or agreed to use.
And you have heard the tales about Skype numbers not being free (or not even close to cheap any more) and tales of MS installing the Skype product on your Win 7 machine automatically
without asking you.
And for using your machine as a zombie droid to torrent all their nightly update stuff out to all the millions of people who are getting it all up the antenna chute right now along with the overage charges from their internet provider for blowing up their data caps.
AND FOR INVALIDATING YOUR WIN 7 LICENSE CODE WHEN THEY STUFF WIN 10 ON YOUR MACHINE SO YOUR WIN 7 INSTALLATION DISK BECOMES USELESS TO YOU.
Microsoft needs to be told
NO and folks are using the GWX Control Panel software to do that. This stuff blocks Win 10 now, but later on permits you to go on to Win 10 later on, when it is worthwhile for you to do so. You will have to download Win 10 and put it on a DVD, then use your Win 7 keycode to initialize it --
but you can wait until there is a good stable Win 10 to do that.Go look at GWX Control Panel, check its reviews and consider using it to keep MS at bay until
you chose to convert.
By using it you can STOP MS until such time you choose to go over to Win 10 (once Win 10 is feature complete and much more stable than it is now).
Use the software NOW, before you get converted "accidentally" by MS and lose all control of your machine and all your backup options.http://ultimateoutsider.com/downloads/ GWX Control Panel (formerly GWX Stopper)