Function Key Lock — Dell

For a permanent hardware-level change, you can enter the BIOS menu during startup. your laptop. Tap the F2 key repeatedly when the Dell logo appears. Navigate to Post Behavior or System Configuration . Select Fn Key Options or Function Key Behavior .

Some external Dell USB keyboards also support Fn Lock via Fn + Esc . dell function key lock

If you don't see this option, your specific Dell model likely requires a BIOS adjustment or a specific driver. Adjusting Fn Lock via BIOS/UEFI For a permanent hardware-level change, you can enter

For permanent control, especially on external Dell keyboards or older models: Navigate to Post Behavior or System Configuration

| Setting | Pressing a key alone does… | Pressing Fn + key does… | |--------|---------------------------|----------------------------| | (default on most Dells) | System feature (brightness, volume, etc.) | Standard F1–F12 action | | Fn Lock ON | Standard F1–F12 action | System feature |

reverses the default behavior of these keys so you don’t have to hold down the Fn key every time.

This is due to the setting. Here is how to fix it on a Dell laptop.