The only solution is to clean install windows 11. I've done it and finally i can change everything.  
My Alienware keyboard is stuck to one color and I can’t change it in AWCC. I’m able to change the color of the back RGB lights but it isn’t showing the keyboard option. I tried updating AWCC, repairing it, uninstalling and reinstalling and so far there’s been no solution.
m15 R7, AWCC not showing keyboard option under FX tab