Hi, Im on licensed Windows 7 ultimate SP1. Now I have a bootable pen drive of Windows 10. I inserted it and went to setup being on Windows 7. Then it said, preparing and went along. Now its on product key screen. Generally when doing windows 10, I click on SKIP and then it automatically activates once the machine gets online. But I dont see the SKIP button on this product key screen. Dont know, whats wrong! I dont think entering windows 7 Ultimate key will get accepted here in windows 10 key screen. What to do now ?