Blue Screen Error 0x000000CE - How to Deal With It Correctly

See Through "Blue Screen Error 0x000000CE" pop-up

As the picture shows, Blue Screen Error 0x000000CE comes with the blue background and the white warning words, saying:

Windows health is critical 
Do not restart
BSOD : Error 333 Registry Failure of Operating System - Host:
Blue Screen Error 0x000000CE

Then it offers a random number, claiming that users need to call this number to solve the problems. Many users are taken in this scam without knowing what exactly the problems are.
In fact this is a misleading ad on your browser, there is nothing wrong with your system, except the adware which offers this annoying ad. Victims who call the given number will be required to purchase removal tools or service.
When you meet this kind of pop-up, what you need to do is rely on powerful scanners, instead of calling a dubious number. The related adware modified your browsers settings so that the pop-up will keep coming as long as you open the infected browsers. To get rid of it, you need to clean up your browser throughly.