Before Avast used different antiviruses: Norton, Avg, Mcafee, etc., but none of them were fully satisfied for different reasons.
A friend advised Avast, I installed it and I do not regret it. For two years, not a single problem has happened. Avast works quickly, does not overload the computer and effectively protects against different parasitic programs, if this was the way medication helped to struggle the virus, there would be no epidemics. Before relying on a program, it has to be set up correctly. I think the negative feedback about Avast is just from users who don't know how or don't want to do the configuration.
My niece's, my daughter's, has the same program on their laptop and no one has complained.
I advise everyone to keep your computer safe from harmful viruses.
