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1). Download Darik's Boot & Nuke software. This software is popular, if not the most popular program to wipe your computer! At least I think so. Any way this will be doing all your work and there is different settings once you boot it up, but we will talk about that later, as here is the link: [ Register or Signin to view external links. ] .

2). One you have done step #1 you will have to download one more thing which is UNetBootin. This allows you to run your USB to run as a bootable disk in a sense or a live disk without burning it on a CD. I will explain the reset later, but for now here is the link the link: [ Register or Signin to view external links. ] .

3). Make sure you have a USB on hand. It can be anything just make sure it is over 2GB, just to make sure you have enough space!

4). One you have downloaded and met the requirements above, then we can continue. First this there is to do is to make sure your USB is plugged into the computer and has nothing on it. It should look like the following image below:

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5). Once you make sure that is set then open up UNetBootin, and it should look like this:

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Once opened select Diskimage, keep it on ISO, and click the browse button the one with 3 little dots. It should look something like this:

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Make sure in UNetBootin, that you have the proper disk selected, and drive as well
[ Register or Signin to view external links. ]

6). Alright, now that we got that out of the way, we can turn your USB into a bootable device! Now find you copy of Darik's Boot & Nuke. It should look something like this:

[ Register or Signin to view external links. ]

7). Once it is selected into UnetBootin, then click ok. It should look something like so:

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8). After you are done, you should see a screen that looks like this:

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Click "Restart Now", and you are on your way to being finished! Now once your computer is back on make sure you go into the BIOS or Boot Menu, by pressing F12(Boot Menu) or F2 (BIOS), this may varies from other computers. Then make sure you find the name of your USB and choose your USB to be the main booting device in stead of you hard drive. Once done your computer will restart again and you will be prompted with a menu that has a bunch of quick commands. All you have to do is press "ENTER", and it should look something like this:

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Once done loading you should come to another menu. This menu will have a list of all you drives or hard drives. Make sure you select the right one you would like to wipe it should look something like this:

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After you choose, click the "SPACE" bar and should see [wipe] right next to the selected drive.

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Then press "ENTER" or "F10". After that you are finished and it should look something like this:

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Just to mentions there are different types of passes you can use to insure your security and to make sure there is absolutely no data on your hard drive:

Quick Erase

- If you just want to erase your hard drive to install a new operating system I would use this.

Gutmann

- This is a algorithm for securely deleting or erasing data, and used for various applications in erasing data.

DoD Short

- This consists of 3 passes and is more of your medium/high security level to wiping your drive. Nobody can really pull and information after performing this step.

DOD 5220.22-M

- This consists of 7 passes. Basically if you want something to never be recovered then I would perform this. This is a high security pass and will completely wipe your hard drive clean no matter what was on it.

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Thanks for reading, took me a while to write this up and I might need some more time to fix any issues with the tutorial. Anyway's thanks for reading I will continue to update this thread and if there are and issues you can always P.M me or post below and I will reply back! One more thing, this is compatible with P.C, Mac, Linux, and Other Linux Distro's.

P.s- Some images regarding the BIOS are not my mine, because I didn't have a computer at the moment to do this on besides the one I am on now! However I will be updating it with my own pictures. However most of the pictures are mine and the tutorial was written my me. Now that I got that out of my way thanks for reading!