Last updated: July 3, 2022
You may not have known it yet, but When you format a hard drive, the data is not erased permanently ! Any data recovery program will be able to recover a large part of this data without too much trouble.
To resolve this problem, DBAN allows several methods to effectively delete files on your hard drives.
DBAN, what is it?
Darik's Boot and Nuke also known as DBAN is a free software which allows you to safely delete all content from a hard drive until it is no longer recoverable.
It uses the safest and best known methods to permanently and completely erase every octect containing personal information on your hard drive. More precisely, DBAN uses the methods Mersenne Twister et Gutman.
DBAN is a bootable utility, that is, it works on its own without an operating system. You just need to install it on a USB stick or burn theISO image on a DVD and start your computer with it to access the program and securely erase your data.
How to completely erase a hard drive with DBN?
Download and create a bootbal key
First of all, download Darik's Boot And Nuke.
Then you have to create a bootable USB drive with the tool Rufus.
Now that you are armed with your USB Boot Drive, insert it into the computer you wish to erase.
Start your PC on the USB stick
To start the computer from your USB key, you will need to access your machine's BIOS and change the order of priority of machine startup. The handling may differ from one PC to another.
In the case of an HP PC here is how change the boot order:
- As soon as your operating system starts up, keep hold down the "F2" key in order to enter the BIOS.
- Press the RIGHT ARROW key to scroll to select Boot (Start-up).
- Press the DOWN ARROW key to select Boot Order.
- Use the F5 or F6 key to change the order.
- Press the F10 key to save the changes and restart the computer.
Launch of the DBAN tool
Once you have booted from your USB key, you should get to the main menu. Push the button "Starter".
You will now be able choose the hard drive to erase. Using the arrows, you must choose the formatting method. Press the key Space.
Then press the r to choose the number of passes of the secure formatting function. Enter the number 8 and press Starter.
Using the arrows, choose the hard drive to erase and press the Space key. The disc is marked as "Wipe".
After all the changes, don't forget to press F10 to start formatting.
If it works correctly you will see "DBAN was successful. All selected discs have been erased ”on the screen.