Digital data has become an important part of our lives. Most of us carry our vital documents, pictures, and other sensitive information on our computers. I would advise my blog readers to use a clean hard drives software before selling their old computers or replacing their hard drives. The normal format utility does not completely erase data. There are tools that can recover files from formatted hard drives.
They must use utilities like DriveScrubber to clean up data present on their hard drives.
See also : DriverScrubber is a good hard drive cleaner