The fastest way to toggle this setting is through a keyboard shortcut:
On some older Dell models running Windows 7, 8, or 10, there is a software setting available. function lock dell
Some older Dell laptops have a system tray utility. Right-click the Dell QuickSet icon → adjust Fn key settings. The fastest way to toggle this setting is
If you have recently purchased a Dell laptop or a standalone Dell keyboard, you may have noticed that your F-keys (F1 through F12) are behaving strangely. For example, pressing might lower your volume instead of renaming a file, or F5 might refresh your webpage instead of turning up the brightness. If you have recently purchased a Dell laptop
The process to enable or disable Function Lock on a Dell computer may vary slightly depending on the model and the version of the BIOS or UEFI firmware installed. However, here are the general steps:
If the shortcut doesn't work or you want a permanent system-level change, use these methods: