New
#11
Be honest with your parents,,, uninstall the antivirus you dislike, then download the program You know to be better for your needs.
If/ when asked about the antivirus program tell them you removed it for a much better/safer program, .. do not be disrespectful to them they are your patents, who allow you to live at home.
Being age 21, don't bother telling them what you are doing to your PC, just ask here... W7Forum , if you need any help with it , great group of tech people, will give you correct info.
Good luck.