How to turn on Your Keyboard Backlight in Windows 10


turn keyboard back light on or off, press the F5 key. If the back light icon is not on the F5 key, look for the backlit keyboard key on the row of function keys. It might be necessary to press the fn (function) key at the same time to activate the backlight key.


How do I turn on my keyboard light?
Here’s how to turn on the keyboard light on Windows computers using the keyboard:
  1. Locate the button which controls the keyboard light. …
  2. Press the button, i.e. F5, F9, or F11. …
  3. Press the button again if you aren’t satisfied with the brightness.