Help my client launches in windowed mode and i cannot create a charcter because i cannot hit okay or enter… im stuck no idea on how to get it out of windowed mode
Did you try alt-f2 ?
Alt+F2 only works when you get into the game, past the character select screen.
Download these default config files: https://l15server.com/files/default_configs.zip
Extract them then overwrite the ones in the L1.5 install folder with those, it should make it go full screen mode at which point you can create your character. You can adjust your resolution at that point.