VirtualBox 5.1.20 Released with Some Bug Fixes

Last updated: April 19, 2017


VirtualBox 5.1.20, another maintenance release for the Oracle VirtualBox 5.1 series was released a few hours go.

VirtualBox 5.1.20 is a small release with some bug fixes, changelog includes:

  • GUI: don’t check if the Extension Pack is up-to-date if the user is about to install a new Extension Pack
  • GUI: fixed a possible crash when switching a multi-monitor VM into full-screen or seamless mode
  • GUI: fixed non-literal shortcuts if the keyboard is not captured (5.1.10 regression; Windows hosts only)
  • GUI: several mini-toolbar fixes in full-screen / seamless mode (X11 hosts only)
  • GUI: don’t crash on restoring defaults in the appliance import dialog
  • Windows Additions: another fix for automatic logins for Windows Vista and newer
  • ICH9: fix for Windows guests with a huge amount (>64G) of guest memory
  • BIOS: fixed El Torito hard disk emulation geometry calculation

Download / Install VirtualBox 5.1.20:

The official Linux binary packages for the latest VirtualBox are available for download at the link below:

If you have a previous 5.1 series installed, and added the Virtualbox Linux repository, upgrade Virtualbox using Software Updater:

To manually add the VirtualBox Linux repository, do:

1. Open terminal via Ctrl+Alt+T or by searching for “terminal” from start menu. When it opens, run command:

sudo sh -c 'echo "deb $(lsb_release -cs) contrib" >> /etc/apt/sources.list.d/virtualbox.list'

2. Download and install the gpg key:

wget -q -O- | sudo apt-key add -

wget -q -O- | sudo apt-key add -

3. To install virtualbox 5.1 for the first time:

sudo apt update && sudo apt install virtualbox-5.1


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