Laptop, How to Change the Function Keys as F1 to F12?

PC Laptop

You can press Fn+Escape to toggle. This works in linux too.

or, in Microsoft Windows, you can use a Dell util.

1. press the ❖ Window key
2. type “mblctr”, Enter to open the Windows mobility center.
3. there, you'll find a box to let you switch F1 to F12 as function keys.

Mac Laptop

Go to system preference, keyboard panel.