Now we've got a new problem here ... instead of being able to post in a new and separate window, I'm adding lines to your reply. There is no place here I can see to edit or delete this, so till someone fathoms this weird and wonderful thing out, I'll have to go with this.

Thank you for the reply. I have not found the lsass.sys in the autoruns after having looked two times through it. I'll give the automatic downloads a try.
I'm writing this to acknowledge your reply and help. It's much appreciated. I'll post again if I find the culprit.