Windows bar not hiding in fullscreen

to exit fullscreen mode, you can press f11 again.

if you want the taskbar hide in fullscreen on windows 10, you can press f11 key on the keyboard, and you will enter into fullscreen mode in windows 10. hide taskbar in windows 10 with f11 shortcut key. Restart windows 10 computer to see if the taskbar will auto hide in fullscreen mode.