Don't accept driver updates from Microsoft. (repeat until it hurts.)
Use system restore to when it worked and hope you don't have to use the recovery media.
Hola. The wifi was working fine on this netbook a few days ago and now the light just stays red constantly. The sound also cuts in and out intermittently. This seemed to coincide with my downloading and installing some updates, although I'm not positive the two are connected. It's running the default netbook operating system, I think it's called gnome. Any help would be greatly appreciated. Thanks.