Will I be guarded from online fraud activities if I install an antivirus program in my home laptop?

Install a good antivirus on your home laptop. That will help you avoid online fraud activities to a certain extent. Also, you should avoid phishing websites and shop from only at reputable websites. Don't reveal your personal information on the social media.

Stay away from spam Emails. You might seen them in your Email spam folder. Also keep your personal financial details safe and don't disclose them in social media websites. Do not browse websites like poker, porn, casino, gambling, viagra, etc.