Windows update won't! Solved:)
Fresh install of 2008 R2 on a 64bit vm (Hyper-V), activated, and running fine. All except Windows Update, which refuses to connect - error 80072efd. I've looked at all the info from MS, turned off the firewall, turned the firewall on, put all the MS sites into the trusted zone, put all the sites into the firewall exceptions list, turned the anti-virus off (though it wasn't even installed when I first tried to MS update).
So what's stopping it from working? All manner of possibilities I imagine - anyone suggest places/things to check?