How do I display my laptop keyboard?

I had ordered a new keyboard and since I have a laptop I want to put one on top of the other or the new one on the laptop keyboard

With the help of the device manager you can deactivate the driver of the built-in keyboard. Possibly. But you have to repeat this after every system start.
Of course, you can also open the laptop and carefully remove the keyboard connector.
With some (older) models there's also the option in the BIOS to deactivate the keyboard.