One disk is missing in USB Disk

Discussion in 'Windows Vista Security' started by jakein2008, Dec 15, 2008.

  1. jakein2008

    jakein2008 Guest

    I connect one removable hard disk to my Vista PC by USB,I can only see one
    disk and another disk is missing from the system, how should I fix this

    jakein2008, Dec 15, 2008
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  2. Details! Details! Details!

    You don't give enough for anyone to give you a valid response.

    How many hard drives are in your system? How many partitions? What type of
    partitions (primary, extended or logical)? Does one of the internal hard
    drives disappear when you plug in a USB drive? What kind of USB drive is it?

    Try again for help.
    Richard Urban, Dec 15, 2008
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  3. jakein2008

    jakein2008 Guest

    Hi, thank you for your answer,

    My removable disk has 2 partitions, when in another computer I can see all
    the two partitions, but in my vista PC , I can only see one partition,
    another one is missing, the internal disk has no problem right now.

    So please help me to fix this problem?

    jakein2008, Dec 15, 2008
  4. OK

    Another question. When you use disk management to look at the USB drive do
    you see 2 partitions? Or, do you see 1 partition and a space where the 2nd
    partition should be? What is the indicated condition of the 2nd partition?

    See what I mean about details! (-:
    Richard Urban, Dec 15, 2008
  5. Windows only supports a single partition on removable media drives, so
    as far as I know you are pretty much out of luck.
    Zaphod Beeblebrox, Dec 15, 2008
  6. He has already said that when connected up to another computer he sees 2
    Richard Urban, Dec 15, 2008
  7. And from reading other posts from the OP, it is likely that this hard
    drive was connected up as an internal drive, not in an external USB
    enclosure. My reply stands: Windows only supports a single partition on
    removable media drives.
    Zaphod Beeblebrox, Dec 15, 2008
  8. Actually, no. This is a well-known limitation of Windows and external /
    removable media, especially Flash drives, but the same holds for any
    drive that is seen by Windows as removable media.
    Zaphod Beeblebrox, Dec 15, 2008
  9. Well, ignoring your aparent upper respiratory issues, I'd say that to
    Windows, they don't appear as removable media drives. Many USB
    connected drives show as removable media, some don't (generally those
    with separate drivers).
    Zaphod Beeblebrox, Dec 15, 2008

  10. Zaphod,

    Good one! I almost snorked my coffee when I read it.


    Len Agoado
    Leonard Agoado, Dec 15, 2008
  11. I have a 20 gig HD from my old computer set inside a USB enclosure
    with three partitions. XP and Vista have no problem seeing those three

    ....although IIRC Windows won't recognize EXT3 or other *nix flavor
    partitions & the OP hasn't said what the other computer was.
    FromTheRafters, Dec 16, 2008
  12. jakein2008

    Paul Adare Guest

    There seems to be some terminology issues that are causing some confusion
    here. Both sides in this "discussion" are correct.
    You (the generic you, not specifically aimed at Cody, I just happened to
    choose his post to respond to) need to get past the bus type (USB) issue
    and look at how Vista sees the drive in question. There are two possible
    ways that Vista will view a USB drive:

    1. As a Hard Disk Drive (hard disks in USB enclosures).
    2. As a Device with Removable Storage (USB thumb drives).

    If Vista sees the device as a Hard Disk Drive (designated as such in
    Explorer and the disk will show up as a Basic, Dynamic, or GPT disk in Disk
    Management) one can create and delete partitions or volumes on the disk as
    one sees fit.
    If Vista sees the device as a Device with Removable Storage (designated as
    such in Explorer and the disk will show up as Removable in Device Manager)
    one cannot manipulate partitions and volumes and only a single partition is
    directly supported in Vista.
    Although ultimately all USB devices are "removable" when it comes to
    determining what partitioning scheme Vista supports, you need to look at
    whether or not Vista designates the device as Removable or not.
    In any case, this is not a security issue and really doesn't belong here.
    Paul Adare, Dec 16, 2008
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