Windows 10 most important changes coming to your PC, tablet and phone

Windows 10 will be free to most users

You heard right: Nothing. Nada. Windows 10 will be a free upgrade for the first year, for users with Windows 7, Windows 8, or Windows 8.1. (XP users—we know you’re out there—no freebies for you or others running versions prior to Windows 7. Sorry!)