#1: Is avast! free antivirus safe? Some people claim that it doesn’t shield your system properly (they say that basically if you don’t pay you are not protected. I don’t believe them though).
#2: How many scans should I do per month? Is it better to do many quick scans or few thorough scans?
#3: How often should I update this AV? Or is it an automatic thing?
#4: Is it safe to leave for a while (e.g. 1 week) an infect file/virus in the virus chest?
#5: Whenever avast! finds an infection, should I send the information about it to the virus lab?
Thanks for the info
(p.s. when you answer please write the number of the question you are replying)