Don't click on the "NO" or your will get infected.
Click on the top-right closing "X":
Do not click on "Cancel" or "Next" on this type of ad:
Beware of fake pop-ups. This advertisement is not
really a pop-up even though it looks like one. It is
really imbedded in the myspace document. Do not click
anywhere on it, not even on the red X:
Beware of fake closing "X"'s. Here is an example of
a fake closing X below the real one. If you click on
the fake one you will be infected with adware. Only
click on the top-right "X":
Some pop-up ads will move the pop-up to the right
side of the screen, hiding the closing "X" in an
attempt to get you to click on the pop-up since you
cannot see the X. To move the window, click anywhere
on the "top blue title bar" and hold your mouse
button and drag the window to the left, then let go
of your mouse button. Then you can click the top-right
closing red X: