Symptoms
I have got problem with updates, I think there is new kind of virus type that effecting computer to browse Windows update-antivirus web page update even to open all other antivirus sites at the same time.
It modifies the network settings so that all antivirus sites and windowsupdate.microsoft.com points to 127.0.0.1 -- naturally, any attempts to browse, even with the all might ff, is for naught...the DNS and hosts files are ignored.