I accepted an update notification from Nod32 on both my computers.
The Win10 Pro-x64 version seems to have gone ok, but the update to Win7 Pro-x64 broke Windows.
I had to perform a System Restore to the restore point associated with the Nod32 update.
I'm curious if anyone has had this issue because I had the same problem on a recent Windows update a few weeks ago. I had installed a few updates and the system got into the same state after a reboot: No network coinnectivity