CM Storm Devastator Support Guide in CM Storm Keyboards Posted August 8, 2015 Hi True Blue. There're no way to tweaking something with Excel or Windows keyboard. You have 3 option: 1. Using script software: Forum: https://www.reddit.com/r/Windows10/comments/2qvom3/scroll_lock_triggers_my_keyboards_led_back_light/ http://www.autohotkey.com/board/topic/9587-keyboard-led-control-capslocknumlockscrolllock-lights/ My source code: http://pastebin.com/7hg3HGm2 In my video, i build to execute file for easy use. If you don't trust this, you can follow instrusion in forums. 2. Mod hardware: You can try this http://atinyhedgehog.za.net/2014/12/cm-storm-devastator-keyboard-mod/. But you can do it with small switch to turn ON/OFF led backlight, don't need complicated like this mod. 3. Buy a new keyboard.