Hard disk recovery of failed components typically include electronics components, read/write heads, head assemblies, magnets, and drive motors.
Software vendors have so far tended to make it difficult for customers to delete all data — because they say that's the way customers want it. Most computer users quite simply do not want to wipe out all data in case they make a mistake.
When a file is "deleted", only the header is changed to indicate available space. The file actually remains on the drive until it's overwritten.
In many cases, data recovery is possible with simple software downloadable on the internet. The download and recovery should be to a different drive to avoid overwriting.
Most data recovery companies offer a "No Recovery No Charge" policy, free diagnostic evaluation, and free phone consultation.
Recovery is possible for damaged hard drives, flood damaged drives, human error (deleted), Fdisked, formatted disks, fire damaged disks, corrupted file systems, virus infected disks, and hardware failure.
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