Virtual machines

VirtualBox

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Updated: 16 April 2025

Guest additions

Select your version of VirtualBox from here https://download.virtualbox.org/virtualbox/
Download by selecting the VBoxGuestAdditions .iso file link.

Guest OS screen size

Match guest screen size to host screen size:
Probably need Guest Additions first.
Go to File > Preferences > Display.
Set ‘Maximum Guest Screen Size’ to ‘None’.
Now, view the guest OS in full-screen mode.

Tuxedo laptop with Windows in VirtualBox

by

Updated: 16 April 2025

I’ve had trouble running a Windows VM inside Virtual box on my Tuxedo laptop. The VM frequently crashes and sometimes consumes all the RAM of my host laptop also, requiring a restart.

Two good pieces of advice I’ve had from Tuxedo support:

  1. Turn off 3D acceleration: Virtual Box > The VM > Settings > Display > Enable 3D Acceleration.
  2. Limit the CPU the guest is able to use to 75%.