It is the first thing you need to fix the issue as stated above. For that, you need to run the virtual machine showing the error and go to the Devices > Install Guest ...

Does anyone know offhand how to remove the guest additions for VirtualBox 3.1 in Ubuntu 9.10? These are the additions that provide mouse integration and X drivers for automatic window resizing.

There's no need for Guest Additions to copy text between host and guest machines in VirtualBox. To enable copying and pasting ...

Oracle VirtualBox is arguably one of the best VM platforms. It has got all the bells and whistles and allows users to not just run one OS but multiple operating systems on one machine. One of its best ...

Virtualbox is one of the more user-friendly tools when it comes to setting up virtual machines, but let's walk you through your first time. When you purchase through links on our site, we may earn an ...

As Oracle continues to digest and dissect the virtualization acquisitions that it’s made, it’s clear that VirtualBox has now officially escaped the chopping block Oracle has continued to develop and ...

Major under-the-hood bug fixes and improvements to Oracle's open source desktop virtualization app allow Windows instances to run better and be debugged more easily Oracle delivered the first release ...