Have you ever encountered this kind of situation that some important files are removed from your hard disk or an external drive? You are crazy to find those special files are missing suddenly without any warning. Maybe the files are gone due to wrong operation, hard disk failure, virus infection or any other situation. But don't be too nervous, just take it easy. You can get them back as original with the help of two amazing data recovery tools. This article will introduce two kinds of data recovery tools to you and expounds how to deal with the cases of deleted files step-by-step.