If you encounter VirtualBox Error VERR_ALREADY_EXISTS, you should reboot the host computer before installing a fresh extension or a VM. Your system is most likely ...

Have you tried VirtualBox 4.1 yet? I hope it isn't because the latest packaged version for your OS is 4.0.12 and you feel as if you're stuck there. You're not stuck ...

We can use two or more operating systems at the same time through a Virtual machine without using a physical machine. But some users encounter an VERR_SUP_VP_THREAD ...

It’s taken more than a week for various problem reports to take on a coherent theme, but it now appears as if an “elevation of privilege” patch for Windows, MS 15-038/KB 3045999, causes intermittent ...