It happens, you are searching for that important document or photo and the external drive you saved it to is no longer functioning.  It happens and if the data is not backed up properly you could be out of luck on getting that file back.  One of the worse things to do is to try to use different tools to restore the drive.  It is very important that the right tool be used as not to cause more damage to the media.  For spinning drives it is important that if you are hearing strange sounds and it is not showing any data to stop and remove the drive immediately.  You will want to have the drive serviced by a business that specializes in drive retrieval as they can actually take the drive apart and scan the internal platers for data.  One of those vendors is listed below with additional information on their service.  You should call around and do your own checking online for any vendor and gather quotes from them before sending the drive off.

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