The fastest way to resolve this issue is checking for a "Function Lock" feature on your keyboard. On many modern Dell laptops (such as the XPS, Inspiron, and G-Series), the Esc key doubles as the Function Lock toggle.
If your Dell laptop lacks the Fn+Esc toggle, change the setting in the system firmware: how to activate f keys on dell laptop
As soon as the Dell logo appears, repeatedly tap the key to enter the BIOS Setup. The fastest way to resolve this issue is
For a deep system-level change that persists every time you turn on your laptop, use the BIOS settings. use the BIOS settings.