Ok this is really stupid, it says "Launcher was renamed. Please rename 'launcher.exe' back to 'Launcher.exe' "

This makes no sense to me because everywhere this file is located on the computer it is named as Launcher.exe
There is no small ' L ' all of them are capital.
Things I've tried:
- Exclusions on Anti virus.
- Turning off Anti virus
- Re installing Gunz
- Download Launcher.exe from the freestyle site.
- Got my friend to send me his launcher. But for some reason as soon as a I turn click, it says Rename the file.

What the hell.

Oh, and the anti virus allowed this game to work before yesterday, never got an error like this. So I doubt its the anti-virus