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Last active August 29, 2015 14:26
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Steps to compact a Virtual Hard Disk
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notes.md

Steps to compact a Virtual Hard Disk

From inside VM (guest):

  1. Disk Cleanup -> Cleanup system files
  2. Turn off VM

From outside VM (host):

  1. Attach VHD as a drive (for example V:)
  2. Delete pagefile.sys and swapfile.sys if you don't want them to be in the parent VHD. They will be created again in the child VHD when Windows starts.
  3. defrag V: /h /u /v /x
  4. sdelete -s -z V:
  5. Detach VHD
  6. Optimize-VHD $vhdx_file -Mode full
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