Recently i've been getting a pop-up when I boot up my Window 8.1 PC. It's a pop-up that says click skip this ad to continue. Usually it is a survey and you can't actually click skip this ad. I open task manager to close the process. It says it's called "Sony" and the title of the pop-up says "Form1". I've done a full scan on Windows defender, as much as I could with Ad-aware 11, full scan on Malwarebytes, aswell as McAffee Security scan. Nothing can pick up on this. I really don't want to re-install my windows with the CD but if I have to and there is no other way then I suppose I will do what I have to. Has anyone ever seen this and how do I remove it?