Gaming series notebook owners may find that the 4-Zone RGB Backlit Keyboard will not light up by pressing Fn+F10, mostly the issue could happen after reinstalling Windows 10.
(Figure.1 G7 7790, G5 5590, and G7 7590 gaming notebooks)
The 4-Zone RGB backlit keyboard is controlled by the AWCC (Alienware Command Center). Install AWCC to activate/change the keyboard backlight.
(Figure.2 AWCC FX Screen)
To download and install the latest version of Alienware Command Center:
Browse to the Dell Drivers & Downloads page:
Select the Operating System
Under Category, select Application
Locate the latest Alienware Command Center Application
Click Download and save the file to your computer
Open File Explorer and browse to the location where the downloaded file is saved
Double-click the application setup file and follow the on-screen instructions to complete the installation process
You may be asked to access the Microsoft Store to finalise this installation