Wow! That worked! Thanks Zybnek, and Amanda. Now that you've all proven yourselves so resourceful, here are 2 other questions (yes, I am greedy). First, what did you install to replace the AVG? Did you use it again, or choose another app? And second, Windows Defender seems to turn itself off whenever I shut down, and I have to reactivate it each time. I've looked at the options and didn't see anything that would have it automatically start up when I turn on the laptop (I don't leave it running when I'm not using it). All suggestions welcome but thanks in particular for this fix!