Window firewall

So friends today you will read about windows firewall that is designed for blocking viruses which is coming from internet to pc and it is giving alerts that the antivirus software is not updated or it is expired or not working properly. and it is just like a device that is configured network transmission based upon rule of centeria people just don't know the value of this thing because they disable this thing from the pc and many windows running in markets which dose not have the permission of microsoft to run. And a bad thing is preset in that window that their is no any program of window firewall means when they costmizing the windows they deleted that program which s very helpful for windows so if any one is reading this artical so don't think that it is just a random program of windows but it is one of great program of windows.