How do I disable the [Windows Start] key? Nathan C. May 10, 2018 21:39 Follow Please press FN Key and Windows key (Fig. 01) to disable it or enable it. Fig. 01 / MK Retro Windows Lock. Have more questions? Submit a request Comments Article is closed for comments. Articles in this section How do I use the media keys? How do I change the hotkey defaults? How do I disable the [Windows Start] key? How do I adjust the height of the keyboard? Why does the backlight remain on after shutdown?