windows 7 - On-screen keyboard with function keys - Super User
F5 key hi-res stock photography and images - Alamy
If your PC has a backlit keyboard, press the F5 key on the keyboard to turn the light on or off. (It might be necessary to press the fn (function) key at...
FN F5 hot key not working? Even after reset. ASUS tuf : r/ASUS