A hard drive that makes a knocking sound indicates media failure due to a power surge.
Usually, an electrical surge or a shock to the hard drive causes it to malfunction or crash. There seems nothing that you can do in this case. If you need the data desperately, you would have to give the hard drive to an expert in data recovery. He will repair and recover the data for you. You would need to change the hard drive with a new one to get the laptop working again. Try removing the hard drive from the laptop and connecting it to an external 2.5-inch hard drive casing and see if you can retrieve the data.
Usually, an electrical surge or a shock to the hard drive causes it to malfunction or crash. There seems nothing that you can do in this case. If you need the data desperately, you would have to give the hard drive to an expert in data recovery. He will repair and recover the data for you. You would need to change the hard drive with a new one to get the laptop working again. Try removing the hard drive from the laptop and connecting it to an external 2.5-inch hard drive casing and see if you can retrieve the data.
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