If you try to maximize the VirtualBox VM window right after installing Windows 10 on a VirtualBox VM, the size of the guest OS user interface is not increased (see the screenshot below).Ĭheck the amount of video memory you have in the virtual machine settings. As you recall, VirtualBox is installed on the host OS running on a host machine (a physical machine) and the guest OS is the operating system running on a VM. You can disable the internet connection or set up a virtual network adapter for a VM in the Host Only mode to allow network communication only between host and guest systems, and deny connecting the Windows 10 guest to external networks, including the internet.

If security is a concern for you, running Windows 10 as a virtual machine (VM) on VirtualBox is a good idea. How to Make VirtualBox Full Screen for Windows 10 Guests If the topic of virtualization interests you, check out some more of our posts on the subject.Designed for businesses of all sizes, NAKIVO Backup & Replication offers complete data protection for all of your production workloads, including VMware vSphere Backup, Hyper-V Backup, Microsoft 365 Backup and more. There are many other options available for virtualization, including the free UTM app which allows you to easily run Windows 11 on an Apple Silicon Mac for example, but there’s also paid solutions including VMWare and Parallels. Go to to find the appropriate download, listed as “Developer preview for macOS / Arm64 (M1/M2) hosts”.As usual, VirtualBox is completely free to download and to use. While technically in beta, anyone can get access to the developer preview beta ARM build of VirtualBox through the VirtualBox website. It does this by virtualizing hardware (that you can adjust to allocate RAM, storage capacity, etc), so the operating system itself doesn’t know that it’s not running on actual hardware. VirtualBox is virtualization software that allows you to run other operating systems in containers on your Mac directly from the application, for example you can run Linux or Windows directly within VirtualBox, and without having to use dual-booting or anything else.

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