Windows Vista Forums

"USB device not recognized" - but nothing's plugged in!

  1. #1


    Frederick Guest

    "USB device not recognized" - but nothing's plugged in!

    On startup, this Vista Business laptop announces that
    there's a USB device which is not recognized. I can
    check the ports and nothing's there physically or in the
    device manager.

    Everything else is terrific - it's fast, stable, etc.

    ??

    Fearless

      My System SpecsSystem Spec

  2. #2


    Frederick Guest

    Re: "USB device not recognized" - but nothing's plugged in!

    Frederick wrote:

    > Paul Montgomery wrote:

    >> On Sun, 27 Jul 2008 20:50:36 -0700, Frederick <freddymac@xxxxxx>
    >> wrote:
    >>

    >>> On startup, this Vista Business laptop announces that there's a USB
    >>> device which is not recognized. I can check the ports and nothing's
    >>> there physically or in the device manager.
    >>>
    >>> Everything else is terrific - it's fast, stable, etc.
    >>>
    >>> ??
    >>
    >> Go into the Device Manager (Control Panel Classic View) and see if you
    >> find it listed somewhere.
    >>
    >> Delete/uninstall it.
    >>
    >> See what happens.
    >
    >
    > Good idea - there was an 'unknown'. I deleted it.
    > Maybe...
    > Thanks

    The Unknown has arisen. This time I 'disabled' it.

    Downright mysterious, as there's nothing plugged into
    this laptop.

    Fearless
    ....but getting a little worried

      My System SpecsSystem Spec

  3. #3


    Dave-UK Guest

    Re: "USB device not recognized" - but nothing's plugged in!



    "Frederick" <freddymac@xxxxxx> wrote in message news:g6koqs$57g$1@xxxxxx

    > Frederick wrote:

    >> Paul Montgomery wrote:

    >>> On Sun, 27 Jul 2008 20:50:36 -0700, Frederick <freddymac@xxxxxx>
    >>> wrote:
    >>>
    >>>> On startup, this Vista Business laptop announces that there's a USB
    >>>> device which is not recognized. I can check the ports and nothing's
    >>>> there physically or in the device manager.
    >>>>
    >>>> Everything else is terrific - it's fast, stable, etc.
    >>>>
    >>>> ??
    >>>
    >>> Go into the Device Manager (Control Panel Classic View) and see if you
    >>> find it listed somewhere.
    >>>
    >>> Delete/uninstall it.
    >>>
    >>> See what happens.
    >>
    >>
    >> Good idea - there was an 'unknown'. I deleted it.
    >> Maybe...
    >> Thanks
    >
    >
    > The Unknown has arisen. This time I 'disabled' it.
    >
    > Downright mysterious, as there's nothing plugged into
    > this laptop.
    >
    > Fearless
    > ...but getting a little worried
    Maybe this program will help:
    Unknown Device Identifier 6.01
    http://www.zhangduo.com/udi.html
    (It's freeware.)






      My System SpecsSystem Spec

  4. #4


    Spirit Guest

    Re: "USB device not recognized" - but nothing's plugged in!

    Sounds like you have a corrupt USB controller issue.

    Boot into Safe Mode - Device Manager - DELETE the
    entire USB section (unplug all you can 1st) and REBOOT.

    This will restore the Controllers and clear any corruption.

    "Frederick" <freddymac@xxxxxx> wrote in message news:g6koqs$57g$1@xxxxxx

    > Frederick wrote:

    >> Paul Montgomery wrote:

    >>> On Sun, 27 Jul 2008 20:50:36 -0700, Frederick <freddymac@xxxxxx>
    >>> wrote:
    >>>
    >>>> On startup, this Vista Business laptop announces that there's a USB
    >>>> device which is not recognized. I can check the ports and nothing's
    >>>> there physically or in the device manager.
    >>>>
    >>>> Everything else is terrific - it's fast, stable, etc.
    >>>>
    >>>> ??
    >>>
    >>> Go into the Device Manager (Control Panel Classic View) and see if you
    >>> find it listed somewhere.
    >>>
    >>> Delete/uninstall it.
    >>>
    >>> See what happens.
    >>
    >>
    >> Good idea - there was an 'unknown'. I deleted it.
    >> Maybe...
    >> Thanks
    >
    >
    > The Unknown has arisen. This time I 'disabled' it.
    >
    > Downright mysterious, as there's nothing plugged into
    > this laptop.
    >
    > Fearless
    > ...but getting a little worried

      My System SpecsSystem Spec

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