<p>We only mention Free Software, because we believe that it is a necessary condition to be trustworthy. Proprietary virtualization software exist, such as <i>VMWare</i>, but is not listed here on purpose.</p>
<p>We are not recommending <i>VirtualBox</i> anymore because only basic functionalities of Tails work in <i>VirtualBox</i>, for example, the display size is limited to 800×600 pixels.</p>
32
**<em>*GNOME Boxes</em>*** is only available on Linux. It has a simpler user interface than *virt-manager* but does not allow to useof a Persistent Storage.
**<em>*virt-manager</em>** is*** is only available on Linux. It has a more complex user interface andthan *GNOME Boxes* but allows to useof a Persistent Storage, either by:
***virt-manager*** is only available on Linux. It has a more complex user interface than *GNOME Boxes* but allows to use a Persistent Storage, either by: