My hard disk keeps disconnecting and connecting by itslef for no reason
It does that on my computer only and it's frustrating!!
I tried connecting it to a 2.0 usb port but still the same problem
if the external HDD is a portable one (ie it's powered solely from USB socket, not mains electricity) buy a "mains-powered USB hub", plug that into an electrical mains socket and into a USB port on your PC, then plug your external HDD into the hub.
if the external HDD is a portable one (ie it's powered solely from USB socket, not mains electricity) buy a "mains-powered USB hub", plug that into an electrical mains socket and into a USB port on your PC, then plug your external HDD into the hub.
Actually it's an external one but not portable as it needs to be plugged in the wall for electricity