Windows Firewall Constructor is a rogue antivirus program that was designed by computer hackers in order to steal money from random computer users. The program warns that your system is infected and recommends getting a full version of a program in order to fix your system.
Windows Firewall Constructor uses Trojan viruses to get inside the system. Once there, the application will use its fake scanner which will want that your system is badly infected and recommend getting a full version of Windows Firewall Constructor in order to remove all infections and protect your system form any threats in future.
Additionally, the program warns about system threats by displaying tons of security notifications and pop up ads. These messages can be ignored as well as the scan results by Windows Firewall Constructor.
Please remove Windows Firewall Constructor from your machine as soon as you detect it on your system. If you have made a payment for it already, contact your credit card company and dispute the charges as soon as you can.