Supringly, this problem has not fixed itself. I am a bit surprised by the lack of suggestions for a solution. Anybody? It seems other people are having similar problems.
Try this: Download SuperAntispyware and/or Malwarebytes (free versions) and install them. Update them and run a scan. I had to run my scan in safe mode at one point because I was infected so badly that they wouldn't run in normal start up. I'm still not sure that I'm totally clean but things seem to be working ok at the moment. If you can't connect to the internet see if you can get them on to a flash drive or cd from another computer and see if you can install them that way. I'm no expert by any means and am waiting for a response to one of my own questions but this may help you until someone else comes around.
Still no answer - I am not impressed.
The problem with running the fakealert stinger is that at this point, I cannot log onto the system, even in safe mode.
Extremely disappointed with McAfee.