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External Hard Drive is not recognized

Discussion in 'Hardware' started by klipz, Nov 7, 2012.

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  1. klipz

    klipz Thread Starter

    Oct 21, 2012
    I get the following error when I plug in my external hard drive.

    If I click on the bubble, then

    When I double click on Unknown Device, then


    I have been using this external hard drive for years and not once has it required any extra software. It does not have a power cord but only connects with USB.
    It is not showing up in Disk Management or Device Management (except for the Unknown Device under USB Controllers). However it has its blue light on and the drive makes its usual working noises when I plug it in. So its not dead I'm sure. How do I get it on My Computer?
  2. c130


    Feb 14, 2006
    Can you try it on another USB port, ideally one on the back of the PC (ie. not a USB hub and not a port on the front of the case)

    Also can you try it on another machine?
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