If there are any, I suggest you to install the updates immediately and then try the fullscreen mode again to see if the taskbar hides or not. If there is an update, you should see it there or you can fetch it manually by clicking on Check for updates button. Press Windows Key+I to open Settings and click on Update & Security. Make sure your PC is running the latest version of Windows. Let’s see how we can resolve the Windows 10 taskbar not hiding in fullscreen error. That ruins the experience, especially when you can see all those icons with constant notifications that make them blink. Several users are facing this issue where the taskbar is not hiding in fullscreen mode. However, it is a sore sight for the eyes when Taskbar is not hiding in fullscreen, especially when you are streaming content or gaming. You can do both the activities inside your favorite browser like Chrome, or some video player like VLC on your PC. People usually go for fullscreen mode while playing games or watching videos.
You don’t want any distractions and want to focus on the thing in front of you. Using fullscreen mode in Windows 10 is simple.