Computer viruses are getting sneakier and sneakier. If your computer is running slower than usual or you are getting unexpected pop-ups when you are not online, you may have a virus or malware. Some viruses are not detectable even with state of the art technology. Even worse, you may download a program to remove the virus, only to have more malware installed on your computer. It is important to have proper virus removal software to ensure that your files and identity are safe.