| HP Series | Default Behavior | Fn+Esc Toggle Works? | BIOS Option Name | | :--- | :--- | :--- | :--- | | | Action Keys ON | Yes | Action Keys Mode | | HP Pavilion (2020+) | Action Keys ON | Yes | Hotkeys Mode | | HP EliteBook | Function Keys ON (often) | Yes (with driver) | Fn Key Switch | | HP ProBook | Function Keys ON | Yes | Action Keys / Fn Lock | | HP Stream / Chromebook | Action Keys ON | No (no Fn lock) | Not applicable | | Older HP (Pre-2015) | Varies | No – BIOS only | Multimedia Key / Fn Behavior |