I have a DELL ONE 2020 which came with Windows 8. I no like 8. Soooo....I went to install 7, not realizing it was an upgrade install until it was too late... I had already wiped it clean. ... Yes I can hear all the why didnt I copy iso. Boils down to I just couldn't figure out how to do this. So now I have a blank harddrive in a fairly new pc so I grab an old xp install and off we go ...thinking I will then use the upgrade to get Windows 7 installed. but every which way I have tried . I get the "No boot manager found" error of cousre this Dell has the UEFI/Legacy feature which I have worked with before, any suggestions out there?