Is there a way to hide my taskbar?
Right-click any blank area on your taskbar (your taskbar is what your Start button sits on) and select “Properties” from the menu that pops up. Select “Autohide” or “Auto-hide taskbar” from the resulting screen.
Now, your taskbar will disappear when you move your mouse away from it and re-appear when you bring your mouse back. If you want to reverse this, just repeat the same steps and uncheck the auto-hide option.