Completely Remove 1 (800) 407-2013 Scam Popup out

1 (800) 407-2013 pop-up keeps locking up your computer screen? It suggests that you need a deep and thorough scan on your operating system, which should be followed by effective removal of certain adware-type infection.
Sounds contradictive to suggestions provided by this warning page? You are supposed to do so because such a fake warning page is actually the real threat that can blow up system security and data protection.