The last thing I did, and I suspect this may have been what caused it, is I went to a lyrics site, to look up “Jessie” by Joshua Kadison. Then my computer froze! Or to be more accurate, it only worked really, really slow. The only thing I could think of doing was to do a system restore to an earlier date. Slowly, taking about 5 minutes for each step, I got the system restore up and running. Then the computer basically seemed to freeze on system restore. Then web pages I have tried at first to get started popping up. It all looked hopeless. But just before the darkest hour, apparently came the dawn. The computer went to system restore mode, and in a few minutes, my computer was basically back to normal again. Whew!
As I said, I assume my going to the lyrics site is how I got the bug. But my computer was acting a little slow lately too. Plus as I have already said, I did recently open up a suspicious email.
I would appreciate any input anyone has to add. Remember, I am not completely computer literate, but I am trying to learn 
. And thank you in advance to all who reply 
.