Just installed VirtualBox-4.3.26-98988-Win on my 10041 and after that I had no internet access on Windows (had no problems on 9926). Looking in device manager I see that the vbox bridged adapter failed to start (uninstalled and worked fine again). In VBox forums I'm seeing more people with the same problem but maybe some ninjas here already have a solution. Anyone? Thank you
The same thing happened to me yesterday. Simplest solution - uninstall that crap and use VMware instead.