This topic is for sharing tips and tricks on how to get VirtualBox to install and work correctly on a Windows 10 host.
Note that Windows 10 is still in beta (preview) as I write this, and is not officially supported by VirtualBox as a host OS. This topic will close when Win10 is formally released and official VirtualBox support is announced.
The main tip for the moment is to turn off the bridged adapter option when installing in Win10, as the latter doesn't like the driver install required.