It is the very first troubleshooting suggestion you should follow in order to get rid of this problem from your Windows computer. Third-party virtual machine apps, such as VirtualBox, VMware ...
The error message indicates that there is a disparity between the extension and VirtualBox versions. This can be because either of them is outdated or the extension ...
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 ...