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# Friday, 23 August 2013 have a great article describing how to shrink a VirtualBox disk image with lots of screenshots, but here are the basic steps for shrinking a VirtualBox image that runs a Windows 7 guest OS. This only works on VDI disk images.

On the Windows 7 guest OS follow these steps:

  1. Uninstall any unused programs
  2. Delete any files you don’t need
  3. Run Disk Cleanup Start->All Programs->Accessories->System Tools->Disk Cleanup
  4. Download CCLEANER and run it.
  5. Run Disk Defragmenter Start->All Programs->Accessories->System Tools->Disk Defragmenter
  6. Download SDELETE and run this command: sdelete –z C:\

The guest Windows 7 OS has now had all the free space zeroed out and is ready for compacting. So from a command line on the host OS:

  1. Navigate to the VirtualBox installation folder, on my Windows 7 x64 OS it’s located here: C:\Program Files\Oracle\VirtualBox\
  2. Run: vboxmanage modifyvdi YOUR-VDI-FILENAME.vdi compact

Job done!

How To Shrink Your Virtualbox VM And Free Up Space For Your Hard Disk

Friday, 23 August 2013 08:04:31 (GMT Standard Time, UTC+00:00)  #    -

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