You must have used very specific search terms to get no results. Maybe you included your hard drive's serial number or something. Boot an Ubuntu/Xubuntu/Lubuntu Live CD and follow these instructions: https://ata.wiki.kernel.org/index.php/ATA_Secure_Erase They tell you how to determine if your hard drive has Secure Erase. Or follow these instructions from the people who wrote the analysis above: http://cmrr.ucsd.edu/people/Hughes/HDDEraseReadMe.txt