How to Unblock Firewall For Games [Windows 8]
If any of the game fails to launch or start, when you double-click the game. Or it keeps on showing the message "preparing to launch". Or, after double clicking the ". exe" of the game, the cursor shows loading sign for a moment and then gets back to normal without launching the game. Then, you should watch this video to get it fixed (y)
[p.s.- this is an example for hitman absolution game (HMA.exe)]