windows is telling me the FAF client is a malware

so i used to have the game on a different computer. its been about three years since i last played the game. I'm trying to download it on my new computer but windows is telling me that the client is a trojan virus.

Anti Virus software is retarded.

"Nerds have a really complicated relationship with change: Change is awesome when WE'RE the ones doing it. As soon as change is coming from outside of us it becomes untrustworthy and it threatens what we think of is the familiar."
ā€“ Benno Rice

Windows thinks that anything that wasn't made by a multi billion dollar company is probably a virus.