Do I need to leave 8MB of unallocated space on Vista hard drive

Discussion in 'Windows Vista Installation' started by nowthenms, May 9, 2008.

  1. nowthenms

    nowthenms Guest

    When you install Windows XP it always leaves at least 8MB of unallocated
    space. I seem to remember that it had a possible functional use.

    Do I need to do the same in Vista Home Premium?

    Thank you
     
    nowthenms, May 9, 2008
    #1
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  2. nowthenms

    Tom Lake Guest

    It will leave that space automatically. You can't get rid of it AFAIK.

    Tom Lake
     
    Tom Lake, May 9, 2008
    #2
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  3. nowthenms

    nowthenms Guest

    Thanks Tom
     
    nowthenms, May 10, 2008
    #3
  4. nowthenms

    Poutnik Guest

    I suppose it could be due to the fact
    a partition cannot start just behind MBR sector
    It must be aligned to beginning of the track.
    Some utilities are able to use these place for special purpose, e.g.
    backing up MBR.
     
    Poutnik, May 11, 2008
    #4
  5. It certainly does: It allows for proper System Partition alignment, as
    Poutnik says.

    I always leave it alone. After all, on a disk of the sizes now used,
    it's a rather infinitesimal amount, and you will NOT miss it at all.

    Yes. Leave it alone.
    The OS left it free, so I would also.

    Donald L McDaniel
    Please reply to the correct thread and article.
    ================================================
     
    Donald L McDaniel, May 11, 2008
    #5
  6. nowthenms

    Nepatsfan Guest


    The 8MB of unallocated space on a hard drive with a single partition is reserved
    in case you want to convert the drive from a basic disk to a dynamic disk.

    How To Convert to Basic and Dynamic Disks in Windows XP Professional
    http://support.microsoft.com/kb/309044

    Quoting from the article.

    "You must have at least 1 megabyte (MB) of free space on any master boot record
    (MBR) disk that you want to convert. This space is automatically reserved when
    the partition or volume is created in Microsoft Windows 2000 or Windows XP
    Professional. However, it may not be available on partitions or volumes that are
    created in other operating systems."

    While this article was written for Windows 2000, it applies to XP as well.

    Setup Reserves Disk Space for Upgrading to Dynamic Disk
    http://support.microsoft.com/kb/225822

    Good luck

    Nepatsfan
     
    Nepatsfan, May 11, 2008
    #6
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