Upgrading to Windows 10 for free from an eligible device running a genuine copy of Windows 7 or Windows 8.1.īuying a Windows 10 Pro upgrade from the Microsoft Store and successfully activated Windows 10.īeing a Windows Insider and upgrading to the newest Windows 10 Insider Preview build on an eligible device that was running an activated earlier version of Windows and Windows 10 Preview.īuying genuine Windows 10 from the Microsoft Store app.īuying a copy of Windows 10 from an authorized retailer.įind it on a label inside the Windows 10 box.