Actually I solved this by using a USB 2.0 enclosure windows enabled me to format as normal create and attach a vhd file instantly whereas the USB 3.0 that the hitachi 4tb touro came with did not . The problem all along was the electronics as the touro comes up as its own device Id not as a regular harddrive although it gives the impression or emulates the harddrive .
A cheep enclosure was simple enough 20 quid . I ripped the 4tb out and now my money has been well spent .... Oops I plugged into a USB 3.0
Port and enjoyed speed too....
