Tweaking the video settings for the SteamOS virtual machine in Virtual Box. With the SteamOS machine selected in the left column, click on Display in the main part of the VirtualBox window.

VirtualBox virtual machines can be run without working with the GUI. See how to take advantage of the VBoxManage command to start, pause, and power down your VMs.

In certain ways, a virtual machine is the most effective option because it allows you to control how much disk space, memory, and other resources are allocated to running the operating system.

In certain ways, a virtual machine is the most effective option because it allows you to control how much disk space, memory, and other resources are allocated to running the operating system.

Virtual machines are usually restricted to a single box, but Portable VirtualBox lets you install VMs on a flash drive so you can run your PC-in-a-PC on any PC.

Learn how to seamlessly integrate macOS into your Windows 10/11 environment using a virtual machine. Unlock the power of both operating systems in one efficient setup.

A virtual machine eats real resources, which means you'll need to allocate memory and storage space to each virtual instance while leaving enough over for your native operating system.

If VirtualBox is not starting the guest OS and it displays Failed to open session for the virtual machine, E_FAIL (0x80004005), follow this article to find the solution.

Did you know that Windows 8.1 Professional and Enterprise has built-in virtualization capabilities? Here's how to run multiple operating systems on a single PC.

If you want to replicate a virtual machine in VirtualBox, you have two options: Export and import to a separate computer or Create a clone.