If the “Auto-resize Guest Display” is greyed out for you, go ahead and reboot your virtual machine and check if the issue is resolved. In case that doesn’t work, go ahead and restart your VirtualBox.

How to resize a VirtualBox VM from the command line Your email has been sent Resizing VirtualBox VMs is easy, when you know the right commands and third-party tools to use. Here's everything you'll ...

VirtualBox is great for testing out a new operating system, but your virtual machines probably aren't that special when you first set them up. Here are a few tips for making them much easier to ...