Thanks EvilRick, Downloading AVG and uninstalling it again work, no more error message.
Thanks meese, I'm glad I didn't have to go that far and get into the registry to fix this.
TOAD6147, bad choice of words for me, sorry. I said delete but meant uninstalled. I had unistalled it previously but something must have gotten left behind. Thanks for your opinion on the anti virus. I'm pretty new to computer and don't know whats good and whats not.