Somehow I got a browser hijacker installed on my Dell Inspiron laptop (Windows 10) which gives me constant pop-ups in the lower right corner of my screen.....there is no way to close them; anything you do just leads to more ads. The pop-ups stay there obstructing my screen and cannot be minimized. I have researched this to death, can't find anything to solve it except ads for SpyHunter, which promises to fix the problem for $39. Can anyone help me with this? Neither Total AV nor MalwareBytes finds it.