I have got ‘relevant knowledge’ popup on my screen randomly. It is really very irritating, a popup comes up suddenly on top of the screen and shows some coupons ads and asking for a survey and a lot of more prompts. Could anyone tell me what exactly is ‘relevant knowledge’? What is the purpose of it on my computer? Eventually, I want to get rid of this from my computer. Please guide me the right way to remove it, because it doesn’t show up in my control panel to uninstall it. What should I do to kill it?