Expanding a fixed-size virtual disk

Discussion in 'Virtual PC' started by Francois Baart, Dec 2, 2004.

  1. Having created a 5gig fixed-size Virtual disk on a NTFS partition (Fat16/32
    has a 2/4gig limit) I ran out of space after installing a disk hungry OS (XP
    Pro) and applications (MS Office and Visual Studio 6).

    I then converted the fixed-size Virtual Disk to a dynamically expanding disk.
    as in the Virtual PC help "Create a dynamically expanding disk from a
    fixed-size disk"

    This should according to the help allow the disk to expand in increments of
    After completing this lenghty process (2 hours) the OS on the virtual disk
    still only reports 10meg free space.

    An obvious work around is to create a new dynamically expanding virtual disk
    and attach it to the virtual machine as "hard disk 2".
    This give the vitual machine more disk space but it is not on its C: drive
    where it is needed.

    Any similar problems or a magic tool/option that I missed?
    Francois Baart, Dec 2, 2004
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  2. There is no way to expand the size of a virtual hard disk. A dynamic
    hard disk can expand up to the size of the hard disk (so in this case -
    5GB). Your only option is to create a new disk and use an imaging tool
    to transfer the data.
    Benjamin Armstrong
    Virtual machine Program Manager

    This posting is provided "AS IS" with no warranties, and confers no rights.
    You assume all risk for your use.
    Ben Armstrong [MSFT], Dec 2, 2004
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  3. Francois Baart

    Steve Jain Guest

    No, a fixed disk is just that fixed. It can't be expanded to a larger
    size. Converting to a dynamically expanding disk won't change the
    maximum limit that was set when you created it.

    Once you set the size limit of a VHD you can't increase or decrease

    You'll need to create a new, larger VHD and use standard methods of
    moving the data from the old one to the new one.
    Steve Jain, Microsoft MVP for Virtual PC for Windows
    Website: http://www.essjae.com
    *** All posts are provided AS-IS, no warranty, no QoS ***
    Steve Jain, Dec 2, 2004
  4. Francois Baart

    San Guest

    Well why dont you create one more disk (Say 20 GB this time!) and use
    partition magic or some such tool to merge it with c: ?
    San, Dec 3, 2004
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