From cmptrgy in my By choice or force topic in the Support area.
Maybe the "GWX Control Panel" (from http://ultimateoutsider.com/downloads/) to disable GWX and prevent auto-upgrading to Win10 could be helpful in your case.
All quotes are from Ultimate Outsider but [ ..... ] means it has been taken from a longer set of sentences of the same meaning
It can all be all checked from the link given.
(The purpose of the Get Windows 10 app is to annoy you into giving your consent!)
So if you really don't want Windows 10 yet, it's best not to click that "Reserve" button to begin with!
..... I am neither anti-Microsoft nor anti-Windows 10, but I am absolutely opposed to the design and methodology of the Get Windows 10 App.
.....The Get Windows 10 app has many traits that are usually associated with malware:
..... It's non-essential software that's deceptively bundled with other, legitimate software via the Windows Update process.
..... In computer security circles, software that claims to be something it's not is called a Trojan.
2 words are bolded by me.