I had established alternate user id's, which I now see are there after all (I first thought they had been removed.) I had found that sometimes at startup the system could hang on bringing up “owner” if there was not a least one other user. This seems related to spyware, according to Geek Squad.
Update: 11:30 Friday evening, the same "freeze" happened once going to a CNN story (with lots of ads on the page). It unlocked pretty quickly this time. See my "Information Technology Job Market" post today for details.