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WD External Drive not detected in Windows 7 after writing zeros


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#1 hpatel22

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Posted 30 December 2012 - 10:06 AM

I have a WD external drive device that I've used for a long time. I wanted to clean up the drive and format it as I do periodically. After moving my files, I used the Western Digital diagnostics program to write zeros to the drive to erase it. I decided I didn't want to wait for the full erase, so I cancelled it, and chose the quick erase option instead. Now the drive is not detected at all in Windows 7's drive list. It is detected in the WD diagnostics program however. Is there any way to recover the drive?

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#2 dc3

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Posted 30 December 2012 - 11:11 AM

In Disk Management is there a drive designated as "Unknown"?

If it is right click on it and choose Initialize and follow the wizard.

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#3 MDTechService

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Posted 30 December 2012 - 04:56 PM

Open command prompt (start > cmd.exe)

diskpart <enter>
list volume <enter>

Does it show up in this listing?
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#4 rotor123

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Posted 01 January 2013 - 03:01 PM

When you wrote zeros to the drive whether Full or Quick erase that removed the partition table, thus no drive letter.

You probably need to follow this Bleeping Computer tutorial.

How to partition and format a hard disk in Windows
http://www.bleepingcomputer.com/tutorials/partition-and-format-a-disk-in-windows/

In order to use a hard drive, or a portion of a hard drive, in Windows you need to first partition it and then format it. This process will then assign a drive letter to the partition allowing you to access it in order to use it to store and retrieve data.



You need to do this with any new or refurbished hard dive or it will not show up in my computer. This also applies to one that has been secure wiped.

Good Luck
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