We've all had it happen, that moment of panic when you wonder if your computer has a virus. In that situation, we can make the wrong decisions by deleting or installing files. If your system is set up properly and you back up files on a regular basis, there is no reason to panic.

Some virus programs appear to have been sent by a friend or a company you have emailed before. Most come from unknown sources. Once opened they work by pulling names out of a computer's address book and using them to further spread the virus. You can set your email to accept plain text only. Block or remove emails that contain file attachments. Some viruses are even programmed to instruct your pc to show you only the plain text but can still infect your computer with hidden malicious code.