External Hard Drive not Detected

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  1. Posts : 8
    windows 7 x64
       #1

    External Hard Drive not Detected


    I have a small 50gb HHD powered from USB

    It will connect to my laptop running windows 7 home premium but not my pc running windows 7 professional

    When plugged into my pc by usb the Disk does not power up and spin (the light does come on)

    There is no recognition of it in my computer, device manager or disk management

    Ive tried

    Reinstalling USB ports & Drivers
    Updating BIOS
    Reinstalling USBSTOR.INF file
    Formatting drive on laptop then connecting
    Trying different USB cable
    Cleaning up all ghost USB device drivers
    Connecting before PC startup and while running

    Anybody got any ideas of how to fix this?

    With it connecting to my laptop im thinking its a driver or windows 7 professional problem but not sure
      My Computer


  2. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       #2

    paddi23 said:
    Ive tried

    Reinstalling USB ports & Drivers
    Updating BIOS
    Reinstalling USBSTOR.INF file
    Formatting drive on laptop then connecting
    Trying different USB cable
    Cleaning up all ghost USB device drivers
    Connecting before PC startup and while running
    Hi,

    You didn't specifically mention it, but can we assume you also tried a different USB port on the PC running Professional? Are you sure its the USB2 and not USB3 port?

    Do both the laptop and PC run 32 bit or 64 bit?

    Do you know the make and model of the external HDD?

    Regards,
    Golden
      My Computer


  3. Posts : 8
    windows 7 x64
    Thread Starter
       #3

    Ive tried all 6 usb ports

    they both run on x64

    The hdd is from an old laptop in an enclosure

    It says seagate momentus 5400.2

    Googled it and it says it does not need any drivers so must be a windows problem
      My Computer


  4. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       #4

    Hi,

    I think its more likely hardware related (the difference between the laptop and desktop). Can you plug it in, then reboot your PC, enter the BIOS and see if the disk is listed as available to boot from? It might show up as an external USB device.

    Regards,
    Golden
      My Computer


  5. Posts : 8
    windows 7 x64
    Thread Starter
       #5

    The drive does not show up in BIOS

    I have 3 internal drives installed maybe this could be the problem?

    2 SATA & 1 IDE
      My Computer


  6. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       #6

    Mmm. Lets check something else, plug in a different USB drive/flash drive into the same port. Enter the BIOS again, and see if that device is shown as available to boot from.

    Regards,
    Golden
      My Computer


  7. Posts : 8
    windows 7 x64
    Thread Starter
       #7

    Sandisk USB flash drive shows on BIOS
      My Computer


  8. Posts : 8
    windows 7 x64
    Thread Starter
       #8

    Now im thinking it might be a power problem as the HDD doesn't seem to start at all and maybe thats why the PC doesn't recognise it.

    There is no power problem with the laptop recognising it

    I turned off power management in the USB root with no luck, also connected the HDD with a Y cable GGGGRRRRRR

    Running out of ideas here
      My Computer


  9. Posts : 1,711
    Win 7 Pro 64-bit 7601
       #9

    try connecting it through a USB hub
      My Computer


  10. Posts : 8
    windows 7 x64
    Thread Starter
       #10

    I dont have a USB hub to hand
      My Computer


 
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