Enable or disable fn (function) or action keys mode (HP ProBook 440 G5, 450 G5, 470 G5, and HP EliteBook 830 G5, 840 G5, 850 G5) | HP® Customer Support
![Fn+Esc Lock key? What does it do? I tried it and when it's turn on it says Fn Key priority mode on, when I turn it off it says hotkey priority mode Fn+Esc Lock key? What does it do? I tried it and when it's turn on it says Fn Key priority mode on, when I turn it off it says hotkey priority mode](https://preview.redd.it/oalciclx77s51.jpg?auto=webp&s=15b54ac61d0e8f344529189f247c725d239b96ef)
Fn+Esc Lock key? What does it do? I tried it and when it's turn on it says Fn Key priority mode on, when I turn it off it says hotkey priority mode
![The F5, F6, F7, & F8 or ALT/F8 function keys do not work (FN lock) - eMarking AssistanteMarking Assistant The F5, F6, F7, & F8 or ALT/F8 function keys do not work (FN lock) - eMarking AssistanteMarking Assistant](http://emarkingassistant.com/wp/wp-content/uploads/2016/01/fnkeys.jpg?x54075)