I dont know whats wrong with the MS. But I had W8.1 PRO genuie on my laptop T430s i7, 16Gb RAM, 256ssd, 512HDD. I did upgrade by using w10 downloading tool, after i got w10 pro activated. Now i did a clean install, i didnt put any serial number and W10 pro is not activated..Whats wrong??? i contected support the id... told me that my generic key of W10 is blocked and ask me for key of W8.1 but I dont have any key..only licence in the bios..how can the id.. help me...any ideas?