National Security Agency virus is classified as a malicious ransomware whose intention is to extort money from the innocent PC users. Once this ransomware is installed on your system, it will entirely lock your computer screen with a message saying that your computer is locked due to the fact that you have broken the copyright law or illegally distributing contents. And in order to get your computer unlocked, you must pay a fine of $300 through Ukash or any other payment systems. You should not fall into this trap and pay out any money. What you should do it to remove this threat from your computer promptly. There are several methods to remove National Security Agency virus : Method1: System restore Step1. Restart your computer and keep pressing F8 key before Windows launches. When Windows Advanced Options menu appears, you should use the arrow keys to select Safe Mode with Command Prompt and then press Enter. Step2. Type “explorer” at the pop-up Command Prompt and pres...