Norton Antivirus gives overall protection to the system and it regularly scans the entire computer. This antivirus instantly blocks all the sites which have malware content in it. As all the viruses damage the files in the device, but it removes the infected content by scanning intensely in the device. When you are using any mail account on the default browser, it also scans the entire emails and blocks the harmful links provided in the mail. Norton Antivirus should be updated and upgraded regularly so that you get a proper scanning of the device.