Question: OK, I have an Alienware M14X and the keyboard backlight is always on and I can't turn it off... Google didn't me much. I want to turn it off because it's disturbing sometimes

I uninstalled Windows OS from my laptop so I can't really disable it from there

Answer: 
Change the color to black and it will be off.
For GNU-Linux systems you can use [alienware-kbl](http://rsm.imap.cc/software/gnu-linux/software/alienware-kbl). With that program you can control the lights of alienware computers.