Ok, so I've just booted and received the same message and then pressed Shift - F10 to get the command prompt, tried ipconfig and no network adapter information is displayed. Ran WPEUTIL /networkinitialize and netcfg -winpe but without success, then used drvload to reload the drivers and it then picked up an ip address.... Does anyone know what I'm doing wrong? I'm integrating the drivers into the image using the exact same command line I used for the standard winpe img i.e. "peimg /inf=[Driver location] [mounted imaged location]\windows" then "imagex /commit /unmount [mounted image location] The standard winpe image works fine, the modified boot.wim doesn't