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USB SD Card Reader

Discussion in 'Windows Vista' started by Mark Spencer, Sep 17, 2009.

  1. Mark Spencer

    Mark Spencer Guest

    Hi there, any help gratefuly received.

    My USB SD Card reader doesnt work when plugged into one of my USB ports, but
    works when plugged into the adjacent port.

    I've tried uninstalling the driver from Device Manager.

    THanks
    Mark
     
    Mark Spencer, Sep 17, 2009
    #1
  3. Dominic Payer

    Dominic Payer Guest

    Do other devices work on the port?

    If it is one of the front USB ports, check that the plug is fully
    inserted on the motherboard header.


    On 17/09/2009 11:42, Mark Spencer wrote:<!--coloro:blue--><span style="color:blue <!--/coloro-->
    > Hi there, any help gratefuly received.
    >
    > My USB SD Card reader doesnt work when plugged into one of my USB ports,
    > but works when plugged into the adjacent port.
    >
    > I've tried uninstalling the driver from Device Manager.
    >
    > THanks
    > Mark<!--colorc--><!--/colorc-->
     
    Dominic Payer, Sep 17, 2009
    #2
  4. Mark Spencer

    Mark Spencer Guest

    Hi Dominic, thanks. Yes the port works fine for other devices. Vista sees
    that a device is plugged into the port (Device Manager) but:
    1. instead of appearing as "SD/MMC Reader", it appears as "!Microsoft WPD
    FileSystem Volume Driver"
    2. No drive letter appears under "Computer"


    "Dominic Payer" <dcp@dcp.fsv.co.uk> wrote in message
    news:%23A$8475NKHA.1372@TK2MSFTNGP02.phx.gbl...<!--coloro:blue--><span style="color:blue <!--/coloro-->
    > Do other devices work on the port?
    >
    > If it is one of the front USB ports, check that the plug is fully inserted
    > on the motherboard header.
    >
    >
    > On 17/09/2009 11:42, Mark Spencer wrote:<!--coloro:green--><span style="color:green <!--/coloro-->
    >> Hi there, any help gratefuly received.
    >>
    >> My USB SD Card reader doesnt work when plugged into one of my USB ports,
    >> but works when plugged into the adjacent port.
    >>
    >> I've tried uninstalling the driver from Device Manager.
    >>
    >> THanks
    >> Mark <!--colorc--><!--/colorc--><!--colorc--><!--/colorc-->
     
    Mark Spencer, Sep 18, 2009
    #3
  5. Dominic Payer

    Dominic Payer Guest

    The port may have a problem, or there may be some driver confusion. If
    you are using a laptop the port may be too low in power priority to be
    receiving enough power to work properly. (Laptops usually provide only
    one 500mA supply shared between all ports instead of the 500mA to each
    port which is the official standard. This conserves the laptop battery.)

    WPD stands for Windows Portable Device. It's the driver that allows you
    to treat your CF and SD cards and USB sticks as a devices for Media
    Syncing. It is also required for ReadyBoost to work. The driver for the
    card reader is not correctly installed and hence you get this error.

    Clean up your devices in Device Manager as follows:

    1. Go to My Computer -> Properties -> Advanced System Settings. Go into
    Environment variables and create a new System variable called
    devmgr_show_nonpresent_devices. Set this to a value of 1.

    2. Go into Device Manager. From the view menu, choose "Show hidden
    devices". Because of the environment variable, you now see all devices
    not in use.

    3. Uninstall any "Universal Serial Bus controllers" not in use (greyed
    out). You can also uninstall any storage volumes, storage volume shadow
    copies, and disk drives which are not in use. You should see your SD
    card reader in one of these areas.

    Then plug your SD reader in again and see what happens.



    On 18/09/2009 10:49, Mark Spencer wrote:<!--coloro:blue--><span style="color:blue <!--/coloro-->
    > Hi Dominic, thanks. Yes the port works fine for other devices. Vista
    > sees that a device is plugged into the port (Device Manager) but:
    > 1. instead of appearing as "SD/MMC Reader", it appears as "!Microsoft
    > WPD FileSystem Volume Driver"
    > 2. No drive letter appears under "Computer"
    >
    >
    > "Dominic Payer" <dcp@dcp.fsv.co.uk> wrote in message
    > news:%23A$8475NKHA.1372@TK2MSFTNGP02.phx.gbl...<!--coloro:green--><span style="color:green <!--/coloro-->
    >> Do other devices work on the port?
    >>
    >> If it is one of the front USB ports, check that the plug is fully
    >> inserted on the motherboard header.
    >>
    >>
    >> On 17/09/2009 11:42, Mark Spencer wrote:<!--coloro:darkred--><span style="color:darkred <!--/coloro-->
    >>> Hi there, any help gratefuly received.
    >>>
    >>> My USB SD Card reader doesnt work when plugged into one of my USB ports,
    >>> but works when plugged into the adjacent port.
    >>>
    >>> I've tried uninstalling the driver from Device Manager.
    >>>
    >>> THanks
    >>> Mark<!--colorc--><!--/colorc--><!--colorc--><!--/colorc-->
    ><!--colorc--><!--/colorc-->
     
    Dominic Payer, Sep 18, 2009
    #4

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