Auto resize screen size for Windows 10 guest VMs in Virtualbox

Want to help support this blog? Try out Oh Dear, the best all-in-one monitoring tool for your entire website, co-founded by me (the guy that wrote this blogpost). Start with a 10-day trial, no strings attached.

We offer uptime monitoring, SSL checks, broken links checking, performance & cronjob monitoring, branded status pages & so much more. Try us out today!

Profile image of Mattias Geniar

Mattias Geniar, November 03, 2015

Follow me on Twitter as @mattiasgeniar

If you’re running Virtualbox on your system to virtualise Windows or Linux VMs, either manually or through Vagrant, you can have the VM auto resize its display when you resize the window on your host.

This guide specifically tailors to Windows 10, but it should work for any Windows Virtual Machine in Virtualbox.

Install the Guest Additions tool

First, install the guest additions in the Windows VM. Go to Devices -> Insert Guest Additions CD.


Install the Guest Additions via the wizard that’ll pop up. Next … next … next … reboot afterwards.


Auto-resize the guest display

After the reboot, go to View -> Auto-resize guest display and check the option.


Now whenever you resize the window of your guest Windows install, it’ll resize automatically to your new window size.

If this does not work for you, make sure you’re running at least Virtualbox 5.0.8 or later, I’ve had flaky results on previous versions.

Want to subscribe to the cron.weekly newsletter?

I write a weekly-ish newsletter on Linux, open source & webdevelopment called cron.weekly.

It features the latest news, guides & tutorials and new open source projects. You can sign up via email below.

No spam. Just some good, practical Linux & open source content.