![F12 laptop key has a function shown as the windows icon next to a lock. What does it do? : r/Whatisthis F12 laptop key has a function shown as the windows icon next to a lock. What does it do? : r/Whatisthis](https://i.redd.it/6rpm2jum2j821.jpg)
F12 laptop key has a function shown as the windows icon next to a lock. What does it do? : r/Whatisthis
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://i.redd.it/oalciclx77s51.jpg)