If it is, Windows 10 will be installed and activated on your PC. Windows will contact Microsoft’s activation servers and confirm the key to the previous version of Windows is real. We tested this method once again on January 5, 2018, and it still works. While you can no longer use the “Get Windows 10” tool to upgrade from within Windows 7, 8, or 8.1, it is still possible to download Windows 10 installation media from Microsoft and then provide a Windows 7, 8, or 8.1 key when you install it. RELATED: You Can Still Get Windows 10 for Free With a Windows 7, 8, or 8.1 Key
