Computer Disposal and Data Destruction

Proper computer disposal prevents sensitive data from falling into unauthorized hands. Simply deleting files or even reinstalling Windows leaves data recoverable with forensic tools — proper sanitization is required before disposal or donation. For hard drives (HDDs): use DBAN (Darik's Boot and Nuke — free) to overwrite the entire drive with random data. Run at least a DoD 5220.22-M 3-pass wipe for general business data; 7-pass for sensitive data. This takes several hours for large drives. Document the wipe date, method, and drive serial number. For SSDs and NVMe drives: software overwriting is less effective due to wear leveling. Use the drive manufacturer's secure erase utility (Samsung Magician, Intel SSD Toolbox) which issues an ATA Secure Erase command — the drive's controller resets all cells to factory state. For maximum assurance, physical destruction (degaussing for HDDs, shredding for both) is definitive. After sanitization, remove asset tags and document disposal. Many hardware vendors (Dell, HP, Lenovo) offer certified asset disposal services that provide a Certificate of Data Destruction for compliance purposes.