My windows 8 Asus won't let me perform a factory reset without a Windows disk, but it never came with a disk. I don't know what to do, please help. I have a virus I am trying to get rid of with lots of constant pop ups ( like pages opening that I didn't open that is obvious spam because they always want me to call some number or fill out my information) after I click anything (including; the scroll button, clicking in a search bar, or just clicking on anything in general) while browsing the Web. That's why I want to perform the factory reset. If anyone can help me, I would greatly appreciate it. Thank you in advance.