Final answer:
In Tablet mode, you must turn off Tablet mode to switch back to the Desktop interface, typically by using the Action Center or System Settings on a device.
Step-by-step explanation:
In Tablet mode, you do not have the option to switch to the Desktop unless you turn off Tablet mode. When a device such as a 2-in-1 laptop is in Tablet mode, the system optimizes the user interface to better suit touch interactions.
This mode simplifies the Start menu and full-screen apps, making it easier to use with touch. However, if you wish to return to using the device more traditionally with a keyboard and mouse, you would need to disable Tablet mode.
To do this, you can go to the Action Center and click on the Tablet mode button, which will toggle the feature on or off. You may also adjust these settings in the System Settings under Tablet mode options.