I suggest you check in Device Manager if the external drive is listed there. Connect external hard drive to the computer. HP EliteBook 720 G2 Hitachi HDD open Device Manager, type devmgmt. Check to see if the external hard drive is listed. In Device Manager, expand the hard drive listed in the list of devices. In general, look under device status for the message. After back if there is no error message. Check if the external drive is detected in[…]
