It’s generally easiest to simply get the latest version of both VirtualBox and the VirtualBox Extension Pack. If you encounter some error message about compatibility, it’s likely because either your VirtualBox version is out of date and needs to be updated (often followed by a reboot), or the version of the Extension Pack downloaded is not up to date or at least compatible with the version of VirtualBox you have installed. Troubleshooting VirtualBox Extension Pack Installation You may need to restart some VMs, reconfigure some VM settings, and relaunch VirtualBox for changes to take effect. That’s it, you’ve now installed VirtualBox Extension Pack and you are ready to use it. Confirm that you wish to add and install the VirtualBox Extension Pack and authenticate with an admin login if necessary.Click the + plus button to add an extension to VirtualBox and then navigate to the freshly downloaded VirtualBox Extension Pack file.Go to the VirtualBox Preferences by pulling down the VirtualBox menu and choosing “Preferences” (Note this is app preferences, different from VM Settings).Open VirtualBox if you have not done so already.Go to and download the latest version of VirtualBox Extension Pack, placing it somewhere you can easily find.
Before doing anything else, update VirtualBox. You’ll want to make sure you’re running the latest version of VirtualBox to be able to run and successfully install the latest VirtualBox Extension Pack. How to Install VirtualBox Extension Pack in VirtualBox The screenshots here are showing MacOS, but the process is basically the same in the other environments for VirtualBox. However with 4.3.18 no amount of fiddling around seems to allow me to restart the Windows 7 32 bit guest.Īctually I can't make it work with 4.3.17r96501 now.This article will detail how to install VirtualBox Extension Pack in VirtualBox on Mac, Windows, and Linux. When I say restarting fails it just freezes, using lots of host CPU power, either just saying Windows is shutting down on the screen or sometimes with a weird pattern of vertical lines. I have to just keep shutting down rather than restarting until at some point I will discover that restarting now works. However this doesn't seem to be 100% reproducible. Then if I start the guest again and again shut down (not restart) once more, then generally after that I will be free to restart and it will work. I was able to get it all working with VirtualBox 4.3.17r96501.īut I seem to have to go into safe mode to install the guest additions and NOT let the installation program do a Restart after installation because it will fail but rather manually just shut down the guest. The problems I often have with restarting my Windows 7 32 bit guest VM are worse with VirtualBox 4.3.18. I run VirtualBox on a Windows 7 64 bit host system.
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