I upgraded to Bios to A23 (three step process going from A5 to A7, then to A23), then installed Win 10, it recognized the Win 7 key and auto activated. I just upgraded 3 Dell Latitude E6420's with i5vpro processors, 16gb Ram and 160GB SSD's (bought from NewEgg last week for $269 each) using the USB thumb drive I made using the media creation tool this morning.