virtualbox.org

I got an error message "Binding engine task queue handler" need to be closed for the installation " when install Oracle VirtaulBox 5.0.14 on Windows 8.1. And don't find any solution. If skip this error, then can not configure network in the VirtaulBox. Can anyone help me to solve this issue?? Thanks a lot.

That would be an error message from the installer (Windows Installer, i.e. MSI), it isn't a VirtualBox error, even though VirtualBox is what you were trying to install.

The only search hit I get concerns Hyper-v. Make sure that is disabled if you intend to use VirtualBox.