I've had 6 people on our domain get "unable to log you on because the netlogon service is not running on this machine. On all the machines both the LAN and Wireless Nic appear in hardware manager but the connections are missing. System restore seems to be disabled on them all and the fixes found in other EE searches don't work. I'm worried that this is some type of virus that isn't being picked up. So far I haven't found anything of the type on the machines.