I am trying to reformat an old pata hdd with w7 from another computer than the original one because the cd doesn't work on the original. I can boot to the cd and bring up the w7 start menu, but the w7 program doesn't give me the option to format the hdd connected to a usb adapter, it only lists the partitions on the computer's internal hdd. I am using an hp laptop to try and reformat the hdd. How do I get the w7 program to give me the option to format the pata hdd if I can? It shows up in device manager.