To get the full functionality out of your virtual machines, installing the Virtualbox guest addition is a must.
By installing the guest additions on your virtual machine you will be able to share directories between your host machine and virtual machine, have access to your host machines clipboard and make use of hardware acceleration for your virtual machines graphics ( especially useful if you want your virtual machine’s desktop to be able to maximise and fill your screen).
In this tutorial i show you how to get and install the Virtualbox guest additions and demonstrate the difference between a virtual machine with guest additions and one without.
If you haven’t already done so i would also recommend that you install the Virtualbox extension pack as this adds further functionality to your virtual machines.
links:
virtualbox iso download