Windows 8 and 8.1 Forums


External hard drive not recognised

  1. #1


    Australia
    Posts : 9
    Windows 8.1

    External hard drive not recognised


    Hi first post here. My portable hard drive stops showing up all of a sudden. It is connected to a USB hub. When I go to 'Disk Management' in 'Computer Management', the hard drive shows up as Unknown - Not Initialised. Also this hard drive works while not using the USB hub, and the USB hub works as well with other devices. Please help, I need this fixed soon. Thanks!

      My System SpecsSystem Spec

  2. #2


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Powered or unpowered hub? If it unpowered its drawing all its power from the one USB port its plugged into. USB 2 ports are limited to 500 ma max. If you have more than one device on the hub its likely not supplying enough current for the hard drive to function properly. A powered hub can supply 500 ma per port.
      My System SpecsSystem Spec

  3. #3


    Australia
    Posts : 9
    Windows 8.1


    It's a powered hub, and it used to work fine on the hub with other devices. Just one day it stopped working.
      My System SpecsSystem Spec

  4. #4


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Power pack still working?
      My System SpecsSystem Spec

  5. #5


    Australia
    Posts : 9
    Windows 8.1


    yes the power pack is still working, other devices connected to the hub (mouse, keyboard, usb-to-ethernet cable) are still working as well
      My System SpecsSystem Spec

  6. #6


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    I know you said it works when connected directly to the PC but I just want to confirm you've tried it after it stopped working though the hub.
      My System SpecsSystem Spec

  7. #7


    Australia
    Posts : 9
    Windows 8.1


    yes everytime i connect to hard drive directly to the usb port on my tablet, it gets recognised. however it just doesn't work connecting to this usb hub (which i need to use a mouse/keyboard/ethernet). thanks!
      My System SpecsSystem Spec

  8. #8


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Ok, its readable usable when connected directly but shows up as blank and not initialized when connected to the hub? Is there data on it you don't want to lose? If not, try partitioning and formatting it with it connected to the hub.
    Last edited by alphanumeric; 17 Aug 2014 at 16:03.
      My System SpecsSystem Spec

  9. #9


    Australia
    Posts : 9
    Windows 8.1


    well yes, the hard drive is full of data that i would rather not lose. I can access all this data when connected directly to the USB or to another computer. So I don't think such a step like that will be necessary, hopefully we can fix this without deleting any data
      My System SpecsSystem Spec

  10. #10


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    Open device manager with that drive connected to the hub. Then see if its listed under USB controllers. If it is delete/uninstall it. Then unplug it and plug it back in and see if the drivers are reinstalled. Failing that you may have to do the same thing for your hub. To be honest I'm running out of ideas.
      My System SpecsSystem Spec

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