Taskbar is a bar that is located at the bottom edge of the display of a graphical user interface which allows quick access to application that is currently running or your favourite applications. You may decide to put it in auto hide in other to free up screen space, so that when you hover at the taskbar location it pops up and hides when you remove your mouse from the position.
Steps on How to Hide & Unhide the Taskbar in Windows
Step 1: Right-click on the taskbar and click on “Properties”.
Step 2: On the taskbar window, check-mark on “Auto-hide the taskbar”.
Step 3: Click on “Apply” and then Click on “OK”.
Step 4: Congrats, you are done.