I have browsed the web for hours now and I can't get passed this error. I am installing from an iso on a usb in a 2.0 slot. I have read that using 3.0 is usually the problem but obvously that isn't it. I have also read motherboard drivers can often fix it specifically sata drivers. I have all my mobo drivers both on the usb with the iso and a seperate usb plugged into a 2.0. Yet the 2nd usb doesn't even show ip on the windows 7 install screen where it says to select driver to be installed even though I can see it in the bios. And the drivers on the usb with the iso are nowhere to be found when I dig into it on the secet driver to install screen. How can I fix this or even install these drivers with no os? Please help