Computers are like people in the sense that they can get sick from viruses and bugs in the same manner as we do.  I had to call my uncle and ask him how to perform an xp smart security removal because it was infecting my computer.  He helped me through the process and he also helped me to upgrade my security settings.  I was worried that the whole computer would crash, but we restored it to an earlier date and everything turned out alright.  Thank goodness that my uncle knew exactly what to do and he was able to completely take care of the issue.