Windows 10 will be a free upgrade for Windows 7 and 8.1 For the first year after Windows 10 launches, any device running Windows 7, Windows 8.1, for Windows users for the full article go here http://www.theverge.com/2015/1/21/7866679/windows-10-will-be-a-free-upgrade-for-windows-7-and-8-1-users