Card Reader won't read 2Gb SD card

Discussion in 'Windows Vista Hardware' started by jammiedodger80, Feb 10, 2007.

  1. jammiedodger80

    Mark Guest

    I haven't found a solution yet either - though I can try using my
    camera as the card reader. I do have 2 generic card readers, both of
    which work fine with XP and Windows 2003 Server, without requiring any
    drivers etc. Small capacity SD cards do work for me (my 1GB and 512MB
    cards work ok), it's just the 2GB cards that won't work. I tried
    Maxell, Sandisk and Kingston branded 2GB SD cards.

    I also tried the SD hotfix, didn't change behaviour on my PC at all.
    Mark, Jun 25, 2007
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  2. jammiedodger80

    huwyngr Guest

    There's a known problem with earlier versions of one Toshiba laptop
    group for which Toshiba say there is no solution except to use an
    external card reader.
    huwyngr, Jun 26, 2007
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  3. jammiedodger80


    The KB article listed is for SD host controllers (sdbus.sys). It takes
    no effect on USB card reader (using usbstor.sys and disk.sys). If you
    believe your 2.0GB card in your card reader does not work under XP,
    could you try to format the card and copy a >1GB file to it? If it
    works, please let me know the brand and model of your card reader and
    the card.

    , Jul 25, 2007
  4. jammiedodger80

    huwyngr Guest

    Sorry -- it's not my problem -- I was offering background.

    Please go back to the first message in the discussion and post the
    message to the original poster.
    huwyngr, Jul 25, 2007
  5. jammiedodger80

    pedro_silva Guest

    I got the same problem here. I have a notebook hp nc6400 running windows
    vista and it was not able to recognize correctly my 2GB SD card. The
    solution above I found in a forum at

    Run regedit and edit the key:
    Change the value from 16 (Decimal) to 1. Reboot and voilĂ .

    It worked fine for me... I hope it can work for you guys too.

    pedro_silva, Nov 2, 2007
  6. jammiedodger80

    Barb Bowman Guest

    do you have the actual link to the forum? the info you posted may be
    specific to TI controllers or a subset of them.

    Before anyone tried this, they should back up the registry key.


    Barb Bowman
    MS Windows-MVP
    Barb Bowman, Nov 4, 2007
  7. jammiedodger80

    pedro_silva Guest

    pedro_silva, Nov 10, 2007
  8. jammiedodger80

    Barb Bowman Guest

    Barb Bowman, Nov 10, 2007
  9. coljohnhannibalsmith, Nov 10, 2007
  10. jammiedodger80

    nekro Guest

    card reader was fine, but now it can't read 2gb sd cards again in sp1 rc1

    MS really better fix this once and for all
    nekro, Jan 27, 2008
  11. jammiedodger80

    adamdorion Guest

    i have a gateway ml6703 i have had it awhile when i first got it
    windows n everything was already working, i have 2 mini sd cards one
    is a sandisk 256mb and the other is simply a micro 2gb sd ( both out of
    cell phones) they both used to work fine, needless to say i
    reinslalled windows vista, finaly got my built in card reader to work
    and read the sandisk 256mb no problems, yet for some reason now it
    does nothing when i put the 2gb card in? what is the issue
    adamdorion, Dec 22, 2009
  12. jammiedodger80


    I've always had the same problem with Vista; any SD cards up to 1 Gb are o.k. but anything larger brings up the "format disk" box. Windows 7 has the same problem, so MS have never resolved it. Windows XP works fine up to 4 Gband maybe beyond. Sadly, there will be no support for XP from April.
    , Dec 24, 2013
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