Windows Defender error code 0x80016CFA is a pop-up fraud message. It is also known as a tech support scam and warns you to call the number displayed on the screen for professional service. This type of pop-up error takes up the entire screen of your web browser and freezes it, giving you a blue screen.
You don’t have to worry about this error, but you should take proper steps to remove the malware from your system and reload your web browser. Here, we will tell you how to quickly fix Window`s Defender error code: 0x80016CFA so that you can try to fix the error and solve it.