Why can't I stop this ads ...?

[Harout321]

Guys I clicked something in my settings and ever since then this weird ads keep popping out and u can't simply click back so they would be gone u have to click on download so it goes on the page or Google play to download and then you have to click back can someone please help me ..?

 

[Laura Knotek]

Welcome to Android Central. Please take a look at this guide written by one of our Ambassadors and see if it help you.