回复：how to get rid of unwanted Ads

? just recently every time I open laptop and connect it with Internet then apprears non-stop unwanted pop-ups, it really annoying as some of them even downloaded without permittion, I found bounch of these softwares already inside my computer and it slows down the speed, how can I get rid of these pop-ups? any setting I can make to? strange is why recently? I have had the laptop for 4,5 years. Anyone knows how to deal with it? Thanksssssss