you could try ( system restore) to put your Laptop back to a time before the pop up started, im not sure what windows you have on your laptop? but for XP, it is click on start" (All programs) (Accessories) (systems tools) and then (system restore) and then pick a date before the pop up started, and follow the instructions, thats what i would try. but im sure that there is some expert out there who will tell all a better way , mick.
mick, December 2013