http://bgr.com/2014/09/28/windows-9-upgrade-free-download/
http://www.pcworld.com/article/2688...ndows-9-will-be-free-to-windows-8-owners.html
According to Diantoro, the Windows 9 upgrade will be available free of charge to all existing Windows 8 users once it’s released. Apparently, users will be able to easily install the Windows 9 update after downloading it from Microsoft, which is how Apple’s OS X updates have been rolled out to Macs for a few years now. For what it’s worth, some of the recent Windows 9 leaks did say that Microsoft already has a tool in place that will allow users to easily perform software updates.
According to Indonesian news site Detik.com (via BGR), Andreas Diantoro, the president of Microsoft Indonesia, confirms that Windows 9 will be a free upgrade for all Windows 8 users.
Why it matters: Users are becoming more accustomed to free operating system updates, given the fact that even major iOS, Android, and OS X updates are gratis. And after the negative reception Windows 8 received, Microsoft has some added incentive to earn back its users’ trust. With that in mind, Windows 9 is just as much a chance to change the tenor of discussion surrounding Windows as it is a new version of the OS.