Please explain which drivers can be used during Windows 7 installation for USB HDD in the known window with "Load Driver" link when there are the list of partitions and the message below: W7 cannot be installed on this drive ?
Am I undertsanding it correctly that you wish to install Windows on a USB drive? Windows cannot be installed on a USB drive. eSATA would work. Possibly Firewire. While there may be a workaround there is an issue in the boot process that disconencts the USB device for a moment and naturally that casues the boot to fail.