VirtualBox is a product from Oracle that allows you to run one or more virtual machines on a computer. Many businesses use it to run various operating systems on one machine to access specialized ...

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.

Run multiple OS simultaneously with this handy program. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Virtualization is an ideal way of running ...