1) Windows tries to install something called "Deterministic Network Enhancer Miniport"
2) After accepting the non-Micro$oft certified driver, the network connection says it's up (according to the 'connected'-icons in the systray), but disappeared from the 'ipconfig' listing completely
3) Trying to deinstall this obscure driver from the hardware-management says something like "unable to do this, because the system might need it for startup"
[SOLUTION]
go to the network connection's properties tab and you should see this alien-driver in the assigned list. Uninstall it from there and it will disappear from the controlpanel, too.