sorry for the late reply but yes I am running it on windows.
hmm! My guess of the top of my head is that if you have an antivirus or similar sort of protection running it may think the game is and "unsafe" application and refuse to open it. If there's a way to whitelist it on whatever antivirus (or windows defender) you have that may do the trick.
I *think* something similar to that has happened to me with games in the past where the games.just wouldn't open :(