“Hubby” means “husband.” Anyway, I’m running a ful scan now and will try that boot scan upon completion. So it’s still possible for viruses to get through, even though I do not download anything I am not confident with (hmmm…I cannot say the same thing for my 22-year-old son, who occasionally might use this computer…), and even though I have plenty of anti-virus software on my Dell? Argh…Will let you know what Avast finds on boot scan later. Also, any clue on those "??\c:" files and what they could be and where they might come from? Thanks!