Depending on the severity of the failure, hard drive rescue can be performed by the do-it-yourselfer or by a trained professional. Do-it-yourself repairs are possible with some of today's advanced software programs. In many severe cases, the hard drive will need to be physically analized, repaired, and recovered by a trained computer technician. This is performed in a clean-room facility using advanced techniques. If the data on your defective component is important, it is recommended to use a trained professional for the hard drive rescue.