expand vdisk

Applies To: Windows Server (Semi-Annual Channel), Windows Server 2016, Windows Server 2012 R2, Windows Server 2012

expands a virtual hard disk (VHD) to the size that you specify.


This command is only applicable to Windows 7 and Windows Server 2008 R2.


expand vdisk maximum=<n>


Parameter Description
maximum= Specifies the new size for the VHD in megabytes (MB).


  • A VHD must be selected and detached for this operation to succeed. Use the select vdisk command to select a volume and shift the focus to it.


    To expand the selected VHD to 20 GB, type:
    expand vdisk maximum=20000

    additional references

  • Command-Line Syntax Key
  • attach vdisk
  • compact vdisk