Resize Citrix PVS vDisk

First, if you have sub versions of the PVS disk, merge it to a new base and then rename the new vhd, pvp and lok file. Delete the merged version from the PVS console.

• Make a copy of the original vDisk (.vhd)
• Open the command prompt (or powershell) and entered Diskpart 
• At the Diskpart prompt enter Select vDisk file=<Full path to the vhd>
• List vDisk 
  
• expand vDisk maximum=61440 (in Mb)
• attach vDisk
• list Disk
• list volume (note the number of the vDisk you want to resize)
• Select volume 4 (number noted in previous setp)
• extend 
• List volume
• detach vDisk 
• exit

Once complete you can import the vDisk into PVS and assign it to the required devices.