QUOTE (redmonke @ Oct 4 2009, 04:51 PM)

Just as a note, most of the websites use the most common OS to fool you, which is Windows XP with the blue theme.
If you're using Windows XP, I recommend you change it to the silver theme or the olive theme, or installing a custom theme (we can help you out with that), that way you'll know if it's a scam in the future.

More simple than that, notice that the active window is your web browser and not an explorer window.
What makes me laugh is when they display the "scan results" right on the "explorer window". When you do a true virus scan, the results aren't shown on the explorer window in big red text.