How to secure erase your hard drive (HD/SSD)








1. Use HDDErase
  • Download the HDDErase software and burn the iso file into a CD. and boot the computer from that CD. then run HDDErase.
  • You can also download and burn UBCD, which includes HDDErase.
  • Here is the guide to use HDDErase
  • HDDErase does not support all the motherboards/disks. You may need to look at method 2: use hdparm
  • this method can be used to restore write performance of a SSD disk.
2. Use hdparm
3. Use cat
  • Linux command cat can do the work too. It may take longer time than method 1 & 2 since is an software based method not using ATA firmware functions.
    sudo cat /dev/zero /dev/sdx
    

    where /dev/sdx is the disk to be erased.
  • This method can be used to restore write performance of a SSD disk though it will be slower than HDDErase or hdparm. Here is the post discuss this.
4. Use Darik's Boot And Nuke

Note: HDDErase and hdparm uses ATA's firmware functions to secure erase the disk. They are recommended to be used to restore the write performance of a SSD disk.

See also




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