We recommend using the following tips to keep your hard drive safe. If you accidentally hit your hard drive with your hand or bump it against something, you should immediately turn it off and unplug it.
Then, place it back into its proper position. Turn it on, wait several minutes, and unplug it again. Wait at least five hours before plugging it back in again.
Another way to check the hard drive if you need to is to Hdd destroyer pull out all of the data and look through it. Be sure that no data is damaged before proceeding with reformatting the drive.
Before unplugging your hard drive, look over the label on the side of the hard drive to make sure you know which side is the USB port.