Secure drive erasure is the process of erasing all or part of a storage device so that the data it contained is difficult or impossible to recover. Standard methods of secure drive erasure do not work with solid-state drives (SSDs); for alternative methods, see below. Liteon Ssd SoftwareSecurely erase a solid-state driveLiteon It Ssdxflash UtilityTo securely erase data, hard disk drives fill the occupied space on the drive with a file consisting of zeroes or execute multiple writes of different characters; for more, see Securely wipe disk drives. However, solid-state drives use wear-leveling algorithms that evenly distribute data among SSD blocks, which means that data is constantly moved around on the drive so the blocks will be worn at an equal rate. Standard secure deletion tools damage SSDs by performing an unnecessary number of additional writes without being able to tell where the data is written. To securely erase data from a solid-state drive, use one of the following methods:
Verify that the drive has been securely erasedUse data recovery software to verify that the SSD no longer contains data. A number of data recovery software packages are available, ranging from freeware to commercial software products. PartedMagic and GParted (listed above) include recovery options. |