I finally got it installed, but a day later I uninstalled it. Besides noticeably slowing boot-up and browser launch times, the program gave me problems connecting to some of my favorite well-known sites, such as Huffington Post. The final straw was problems importing e-mail from my ISP mail service to my PC.
Too bad I had already paid for a two year subscription to the upgraded version before the problems became intolerable. I'll chalk it up as a tuition payment to the school of hard knocks.
To those who tried to help, Thank You. You all seem like good people.