I'm using a Dell desk top with windows XP, and a dial up on AOL (in a rural area that is the best available). Last year I downloaded Avast for Home for the first time, and was very pleased with its performance. I noticed no difference in how the computer ran after the installaion. When that license ran out a month ago, I downloaded Avast 4.7. Since then the computer is very slow starting up when I first turn it on, and also when I open pages on the Web. My internet connection speeds have not changed either.
What is 4.7 doing to my computer, and how can it be speeded up again?