Dragging a file to the recycle bin marks it as deleted... but the data remains on the hard disk, hidden in magnetic ones and zeros that a mediocre cracker can decipher. Even formatting a drive can leave readable information. Wiebetech's Ultra Drive Erazer fills every sector--in every partition--with nothing but zeroes, leaving nothing left to recover. Your freshly cleaned disk can be reused or sold data- and worry-free. Works with all SATA drives and 3.5 IDE (PATA) drives, regardless of format or OS type.