The Tablet Mode is a new feature in Windows 10, which allows the user to switch the system interface, whenever a tablet is detached from a base or dock. When the Tablet Mode activates, the Start Menu goes full-screen. During Tablet Mode, many other windows like the File Explorer or the Settings window also open at full screen.
Step 1 − Open the Start Menu and select “Settings”.
Step 2 − Select the “System” option.
Step 3 − Turn the Tablet Mode switch from “Off” to “On”.