How to get rid of **** ads on webpage?

Suddenly normal webpages like yahoo and facebook on my laptop are showing **** ads which is very annoying.I really dont know how the hell its coming? coz here never visited the **** sites. My laptop is also running very slow. It cant even play any video properly. Tried everythng scaning computer ,deleting temp.... show more Suddenly normal webpages like yahoo and facebook on my laptop are showing **** ads which is very annoying.I really dont know how the hell its coming? coz here never visited the **** sites. My laptop is also running very slow. It cant even play any video properly. Tried everythng scaning computer ,deleting temp. files but no help. Please if any one knows the solution tell me.
4 answers 4