Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Possible Duplicate:
Securely erasing all data from a hard drive

I am using Windows 7 64bit on normal HD drives. SATA 2. I don't have a boot disc or copy of Windows.

I want to complete format both my HD and leave nothing on them (including Win 7) can I do this using a command line or do I need some special dos boot disc?

I also want to COMPLETELY erase the HD - I want to fully erase all my disc contents. I have heard all discs contain a history (police, forensics) I want it fully clean.

share|improve this question

marked as duplicate by Nick Josevski, studiohack Feb 14 '12 at 23:34

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

Also have a look at:… – Nick Josevski Feb 14 '12 at 22:30
up vote 3 down vote accepted

There are a number of tools. All will require you to boot from CD/DVD or similar.

I used the following ones on several occasions:

share|improve this answer
+1 DBAN if you really want to ensure all data is erased. – Nick Josevski Feb 14 '12 at 22:28

A low level format format in any filesystem using an Ubuntu LiveCD should do the trick. But honestly, if it was mine, and I was in legal trouble, I would take the drive out and destroy it with a hammer.

share|improve this answer
Toss it in the lake and hope it doesn’t float back up in the spring. :-D – Synetech Feb 15 '12 at 1:46

Not the answer you're looking for? Browse other questions tagged .