Toshiba external hard disk

Hi everyone please help...
my Toshiba external hard disc also facing the same problem can not recognize, and once to plug in the message pomp out as below:-
"USB Device Not Recognized
One of the USB devices attached to this computer has malfunctioned, and windows does not recognize it. For assistance in solving this problem, click this message"
Can someone help in kind please.. thanks all..
 
Yeah Reine, my older Passport drive will do that too sometimes cause the data cable is a bit finicky. I'd just unplug the external and power it down. Wait a few, then plug it back up to USB and power it back on. If that dont work, throw in a computer reboot, before u start messing with driver uninstalls and such.