I have created a bootable PE image and can boot it using a UFD. Everything works as expected except that I would like to access the .wim file located on UFD drive after the ram disk has been loaded. Does anyone know how to re-access the UFD drive or restart the USB port so the drive is assigned a drive letter? I have tried to use devcon and other scripting techniques but none have been successful at re-assigning the UFD a drive letter other then physically removing the drive and re-inserting it back into the port.