How to Get Rid of 1-877-223-3809 Fake Virus Alert For Good?

Stuck with 1-877-223-3809 alert from Mypcsupportinfectionfoundreport1x.online or a similar page with Microsoft logo claiming "RDN/Yahlover.worm!055BCCAC9FEC infection" or "Your computer has been blocked due to suspicious activity", you may get pestered. This fake virus alert always shows itself in your browser suddenly, making you may fail to do a simple search or click to navigate anywhere. It is well annoying that this security alert may just freeze your screen and force you to launch Task Manager to stop your browsing repeatedly.