Thanks to everyone for their replies.
Earlier, I had updated Malwarebytes, while leaving avast enabled and the Windows Firewall on, and had no difficulty.
I then ran Spybot. Each time I do, it comes up with something called Right Media, which I then have it delete. My point is that Malwarebytes doesn't ever catch this. Big deal??
I may delete it eventually if everyone thinks that would be wise. Not sure if and when I might replace it. I'm hoping bob3160 is right and that I don't need it for my purposes.
I really appreciate your help, guys.