I got a virus and took my mini laptop to have the virus removed and after removing the virus they loaded AVG security on my computer. Now my computer is painfully slow. I already had Microsoft essentials. I’m thinking of deleting AVG because of the way my computer now runs. Isn’t Microsoft essentials enough? I ran a scan on Microsoft essentials and it found an infection and deleted it. Apparently AVG didn’t catch it. Do all security programs slow down the computer?