Re: Sorry Nadella looks more like Erdogan...
"Look at how he decided Windows *must* collect as much data as it can about users, and upgrade itself even on machine of users who didn't approved it."
If only this were true, you'd have a point.
Much/all of the data collection that is new to Windows 10 can be turned off, yes it's on by default (even in Enterprise edition which is not so good) but for home users this is probably a good thing. You'll find the average home user (i.e. not a someone like you or I) is far more interested in having an enhanced and personalised experience than they are in their privacy, and for those of us that do care it's not extraordinarily difficult to turn this stuff off.
Bearing in mind for the most part we're talking about people who would much rather their predictive text learning on their phone/tablet/laptop were all synced up and are not at all bothered if that means their typing patterns get sent off to Microsoft (which is what the input collection feature in Windows 10 is for).
I have yet to see a case of a Windows 7/8/8.1 user having their machine forceably updated to Windows 10 without their consent. There may well be cases where a user says they haven't clicked anything to do the upgrade but if you believe everything a non-techy user tells you then you've either been working in IT too long or not long enough.
Sure for those who aren't interested in upgrading having Windows Update remind you about it and/or automatically pre-download the OS installation files is annoying and waste of time and resources. But again this is aimed at streamlining and optimising the experience for the majority of users who want the new shiny thing, especially because it's free.
In almost all cases, those who are genuinely not interested can in one way or another prevent this upgrade prompt from bothering them.
What Microsoft are really guilty of if anything is over reaching in their efforts to streamline the experience for the less tech-savvy user, rather than forcing their will on you and giving you no choice.