hercules usb is not recognized by my computer

i have been using my hercules dj console mk4 for a while now but im surprised that my computer does not recognize the hercules device,...i have done everything except format my computer and it still doesnt recognize the device. if i connect the mk4 to another computer it will power up, but if i connect the mk4 to my system i get an error code 43 (windows has stopped this device because it has reported problems). can someone please tell me what to do???