====== VirtualBox ======

===== Minimize VDI disc space =====

Windows in Vbox gets huuuge, the disc image grows, although there is a lot of free space shown inside Windows.
It is often possible to reclaim this free space:


**1. Defrag**

for example with **MyDefrag** - it has a option to put empty space at the end


**2. zero empty space**

use sdelete from https://technet.microsoft.com/en-us/sysinternals/sdelete.aspx

  sdelete -z c:


**3. Compact VDI**
  VBoxManage modifyvdi --compact /path/to/disc.vdi   # use uuid of disc, if this doesn't work