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Solved External HDD not recognized after wiped with DBAN utility

June 4, 2012 at 11:51:59
Specs: Windows 7/Linux Mint 10, Intel P4 2.0GHz/(3) 512MB PC133 SDRAM

I have an external USB HDD (s/n: WD1200U017-002). I wanted to lend it to a friend, but before I lent it out; I wanted to make sure that ALL information was wiped from the drive.

I used Darik's Boot and Nuke (DBAN) hard drive wipe utility (boot disk), using the quick DOD wipe (5 pass write). It completed successfully after a few hours.

I then moved the drive to a windows PC. It wasn't recognized at all. I checked the Disk Manager utility in Windows, and it too didn't recognize the drive. It doesn't show up in Hardware Manager either. So I'm not sure if I deleted a hidden partition on the drive or something like that.

I tried plugging it into a Linux PC, but it didn't recognize the drive either.

So what would I need to be able to see this drive again? Once I can see it again, I'll be able to partition/format it.

I'm thinking of trying a Win98 boot disk with Fdisk? Any other suggestions?

Are you classified as human?

Negative. I am a meat popsicle


See More: External HDD not recognized after wiped with DBAN utility

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✔ Best Answer
June 4, 2012 at 15:57:05

The external drive CANNOT show up in Computer and Windows Explorer in Windows 7 or Vista (or in My Computer and Windows Explorer in XP) unless it has had a software file system installed on it that Windows recognizes - FAT, FAT32, or NTFS - on at least one partition, that file system has been Formatted, and it's been assigned (a) drive letter(s) in Disk Management.

Similar applies for ANY operating system.

"Even if the hard drive has some issue the enclosure should show up in Device Manager as a mass storage device.".... under USB Controllers, and under Disk Drives as a USB device

"When viewing Windows Disk Management you should expand the screen to full. The drive may be showing at the bottom of the list. Even if you wiped the drive it should still appear in Disk Management."

If it doesn't show up in Disk Management and Device Manager.......

- the external drive MUST be plugged into a USB port that can actually supply 500 ma of current

- the external drive may NOT be detected correctly when it's plugged into certain USB ports

Troubleshooting USB device problems including for flash drives, external drives, external memory card readers.
See Response 1:
http://www.computing.net/answers/ha...
....

In addition to the info there....

For some desktop mboards you can have problems when an external hard drive is plugged into one of a pair of USB ports on the back of the case that are connected to the same USB controller, if there is another device plugged into the other USB port for the pair, because the pair can't actually supply 500 ma per port - they can only supply 500 ma in total. Usually those pairs of ports are one above the other, not beside each other. If you have two devices plugged into such a pair of ports, try plugging one of them in elsewhere on the back of the computer.

For MANY laptop and netbook mboards similar applies. The built in USB ports often cannot actually supply 500ma per port - they supply 500 ma in total for two ports that are close to each other. In that case, the external drive should work fine if it's the ony thing plugged into the USB ports built into the laptop or netbook, or if you have more than two ports, the only thing plugged into two ports close to each other.




#1
June 4, 2012 at 12:14:08

"I used Darik's Boot and Nuke"

Apparently you don't trust your friend. After you wiped out all paritioning, did you create a new partition & format it?


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#2
June 4, 2012 at 12:40:38

It had some personal information that I didn't want to share with anyone, even if it is a friend.

No, I have not been able to create a new partition or re-format it. It hasn't been recognizable in Window or Linux to be able to partition it or format it.

I am trying to find out a way to be able to do that. I'll try using a Win98 boot disk with the FDISK utility. But if anyone else has any idea as to how to partition and format the drive, that is what I am looking to find out.

Are you classified as human?

Negative. I am a meat popsicle


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#3
June 4, 2012 at 13:37:20

I believe that the software you used is intended for use when disposing of a drive. It is probably intended to destroy the drive completely. Since I do not know the software I cannot be sure, but there might have been an option to preserve the drive's ability to work or destroy it.
It is possible that it may be repairable only if you crack open the case and install it as an internal drive. If it is recognized then, you can partition and format it. Once this is done (if it works), it may work again as an external.

You have to be a little bit crazy to keep you from going insane.


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Related Solutions

#4
June 4, 2012 at 13:41:05

External hard drives are composed of TWO pieces of hardware. The enclosure and the actual hard drive. Even if the hard drive has some issue the enclosure should show up in Device Manager as a mass storage device.

Look in Device Manager at disk drives and at USB controllers.

When viewing Windows Disk Management you should expand the screen to full. The drive may be showing at the bottom of the list. Even if you wiped the drive it should still appear in Disk Management.

If you see the mass storage controller but NOT the hard drive, then you may have stressed the drive to the point of failure. Download tools to check the drive from the manufacturers site.


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#5
June 4, 2012 at 15:57:05
✔ Best Answer

The external drive CANNOT show up in Computer and Windows Explorer in Windows 7 or Vista (or in My Computer and Windows Explorer in XP) unless it has had a software file system installed on it that Windows recognizes - FAT, FAT32, or NTFS - on at least one partition, that file system has been Formatted, and it's been assigned (a) drive letter(s) in Disk Management.

Similar applies for ANY operating system.

"Even if the hard drive has some issue the enclosure should show up in Device Manager as a mass storage device.".... under USB Controllers, and under Disk Drives as a USB device

"When viewing Windows Disk Management you should expand the screen to full. The drive may be showing at the bottom of the list. Even if you wiped the drive it should still appear in Disk Management."

If it doesn't show up in Disk Management and Device Manager.......

- the external drive MUST be plugged into a USB port that can actually supply 500 ma of current

- the external drive may NOT be detected correctly when it's plugged into certain USB ports

Troubleshooting USB device problems including for flash drives, external drives, external memory card readers.
See Response 1:
http://www.computing.net/answers/ha...
....

In addition to the info there....

For some desktop mboards you can have problems when an external hard drive is plugged into one of a pair of USB ports on the back of the case that are connected to the same USB controller, if there is another device plugged into the other USB port for the pair, because the pair can't actually supply 500 ma per port - they can only supply 500 ma in total. Usually those pairs of ports are one above the other, not beside each other. If you have two devices plugged into such a pair of ports, try plugging one of them in elsewhere on the back of the computer.

For MANY laptop and netbook mboards similar applies. The built in USB ports often cannot actually supply 500ma per port - they supply 500 ma in total for two ports that are close to each other. In that case, the external drive should work fine if it's the ony thing plugged into the USB ports built into the laptop or netbook, or if you have more than two ports, the only thing plugged into two ports close to each other.



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#6
June 4, 2012 at 17:17:06

Nope, nope and nope. Can't see it in the Disk Manger (scrolling to the bottom of the page, or maximized), or in the Device Manager under Disk Drives, or under USB controllers (and it doesn't show up as an optical device either, which I checked just in case).

I tried my Win98 boot disk running FDISK, and it doesn't show there either (might be the MOBO that I used, it might not have USB available at BIOS level).

The drive was working perfectly fine when before running the wipe utility. That's why I suspect there were either hidden files or another partition on the drive that allowed it to be mounted without any problems.

I've tried different USB ports on my workstation PC, and bada-boom, there it is. Shows up in the Disc management utility right away. Thanks for the suggestion to try a different USB port.

I have now create a partition and am formatting the drive. I'm going to start on another USB drive wipe as well. Nice to know I can do this with all of my external drives now.

Are you classified as human?

Negative. I am a meat popsicle


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#7
June 4, 2012 at 18:19:21

Thanks for the thanks.

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