Over 270 million users have either upgraded to Windows 10 or bought a new Windows 10 PC since the operating system shipped in July of last year, a number that Microsoft says outpaces Windows 7 adoption by 145 percent. Microsoft CEO Satya Nadella says that the operating system is the "fastest growing version of Windows for both consumers and enterprises," and Windows and Devices group VP Terry Myerson says it has been used for more than 75 billion hours.
[...] Of course, Windows 10 adoption has also been helped along greatly by the fact that the operating system is available as a free download to all Windows 7 and Windows 8 users (in a handful of cases, it has been installed on systems whether users wanted it or not). The free upgrade is scheduled to end in July barring some extension from Microsoft, so we may see this relatively brisk adoption rate drop off after that.
" . . . baring some extension from Microsoft" is hedging language.
Windows 7 has been fine, as was Windows XP before it.
Microsoft is a for-profit firm, so a reasonable question is how does a "free" "upgrade" foster such an aim?
Where's the hook?