Computer viruses are designed to cause damage to your computer data. So you mustn’t be downloading files that are virus infected. In business or personal communication, it is very embarrassing if the receiver tells you that your files are virus infected.Yes, I hear you saying that come on, I use an antivirus. How can the files be infected as I update my antivirus and scan all my files on computer regularly. I know almost all of the online and offline PC’s have antivirus protection on. Let me be...