wifi completly gone

today after doing the weekly updates from microsoft i had no wifi. there is only my wired connection in network and sharing and nothing in device managerthe strange thing is that this is only happening on my win7 ultimate (x86) partitionmy XP home, Ubuntu netbook remix 10.10 and joilcloud is all working what could the problem be?

thanks for your help but just rebooting about 10times i think it started to work again :) still dunno what the problem was though but oh well