@agarabaghi -- Did that fix your issue? I am having the same issue (using the Lenovo usb 2.0 ethernet dongle, same computer model, Carbon X1, win7, i5, 4gb ram). I am trying to image our Carbon X1's through MDT 2010 and get the same error message. I added the correct driver (at least what i think is the correct driver) to MDT and the Light Touch boot image.. same error.