Tablet mode has a different appearance than Desktop mode. Tablet mode uses tiles; whereas, Desktop mode is arranged like a standard Windows PC or laptop. Each function a little differently, but both have all of the same abilities.
From the Windows desktop, select the Action Center icon located in the taskbar (lower-right).
Utilize the touchscreen (if available) or mouse to select the on-screen options.
Select Tablet mode to turn on or off.
If necessary, select Expand to view all options.