BitLocker non-TPM: USB key not detected

Discussion in 'Windows Vista Security' started by Tim T., Jun 26, 2006.

  1. Tim T.

    Tim T. Guest

    I have enabled bitlocker encryption on my T42 whithout TPM support. I have
    put the encryption key on a USB key when I enabled BitLocker as instructed.
    The drive is fuly encrpyted now, but when I restart the machine it can not
    detect the USB containing the key even though I have it plugged in and the
    BIOS can even see it. The exception is that when I use a bootable CD which
    allows me to select "Boot form C:\" it does recognize that the USB key is
    there and boots up fine. Without the bootable CD I have to type in the
    recovery password to boot up.

    Any insight on this problem? Thank you.
    Tim T., Jun 26, 2006
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  2. We have seen a problem like this before, and it's a function of the BIOS.
    You could try checking to see if there are any later versions of the BIOS to
    see if the problem goes away.

    For RC1, BitLocker has been modified to test the hardware before encrypting
    to catch BIOS quirks.
    Jamie Hunter [MS]
    Jamie Hunter [MS], Jun 27, 2006
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  3. Tim T.

    Tim T. Guest

    I updated the BIOS to the latest version and there is no difference in the
    behavior of BitLocker.

    Tim T., Jun 28, 2006
  4. The only next approach is to contact the Laptop manufacturer and request a
    BIOS that supports BitLocker. Sadly, this is an area that is completely
    outside of our control.
    Jamie Hunter [MS]

    Jamie Hunter [MS], Jul 10, 2006
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