Hard Drive Magnetizing (Degausser)

Tags data research


After PCs and Macs are sent to surplus, their hard drives are degaussed (magnetized) to destroy any sensitive information. This process is part of the university’s TAC 202 requirements and an industry best practice.

Degaussing randomizes the magnetic domains – most likely rendering the drive unusable in the process. Degaussing, or demagnetizing, applies a reverse magnetizing field to data stored on magnetic media, erasing the contents by returning the magnetic flux to a zero state. For nonmagnetic media we use a certified and secure company to destroy the flash and nonmagnetic media storage drives.

Degaussing will permanently erase the information from hard drives and data tape in seconds, preventing the unauthorized retrieval of data.  Degaussing will also permanently erase the data from non-functioning hard drives and data tape allowing the media to be safely returned to the manufacturer or to be disposed.  

For newer Solid State Drives a hard driver degausser isn’t absolutely secure. In order to maintain high level security for older harddrives IT Solutions has a State contracted company destroy the drive and provide a certificate of destruction.

Getting started and support

Researchers who need hard drives degaussed in accordance with data management for research projects should contact the Technology Service Desk at 940-898-3971servicedesk@twu.edu, techchat.twu.edu, submit a request through the Technology Service Catalog or submit a request by clicking Request Service on this page.


hard drive magnetizing


Service ID: 12082
Tue 2/2/16 4:38 PM
Mon 7/13/20 9:50 AM