Secure wipe
All donated laptops have their data securely wiped as the first stage of the process. If the laptop includes a SATA hard disk or solid state disk (SSD), the ATA Secure Erase command is sent to the disk, completing a highly secure erase of all data according to the manufacturer's best practice.
In the rare circumstances where the disk can't be wiped by software, the drive is physically damaged beyond repair by drilling several holes through the unit.