This issue started around 3 days ago and has been persistent since then. Basically when i launch a program, such as chrome, a pop up will appear saying "windows firewall has blocked some features of this program". You then have do check / accept it. It does the same thing on games that i play on my computer as well when i try to connect to a game server etc and has affected the possibility of me hosting my own server. I have tried to fix this by adding exceptions to the firewall and even disabling the firewall yet every time i re-open the settings the firewall is enabled again and any exceptions i have added are gone. I have also tried a full computer scan for viruses which found nothing. Below is an example of the message that pops up. It is not just for arma 3 though but even for Microsoft's own programs like Skype. Any help would be appreciated.