Aside of add to the antivirus exception list, sadly I don't know.
update, i managed to remove my antivirus intiredly because even if I putted it in my exemption list, it just didn't want to work. But now that's done I have encountered an other problem.
The game still can't open up and the error message says something along the lines of "Impossible to execute the code, because UnityPlayer.dll is not found."
They said to re-download the programe but i already try that and it doesn't work.
Also excuse my crappy english, it is not my first language.