Here are a few options for a post about resetting the taskbar, depending on the platform you are using (Blog, Social Media, or a Quick Tip).
This forcefully closes and then restarts the taskbar and desktop interface. Resetting Taskbar Settings to Factory Defaults how to reset the taskbar
If that fails, you can rewrite the taskbar registry keys. Here are a few options for a post
When the taskbar becomes unresponsive, disappears, or shows visual bugs, restarting the underlying process is the most effective first step. : Press Ctrl + Shift + Esc to open the Task Manager. Locate Windows Explorer in the list. Right-click it and select Restart . Using Command Prompt : Open Command Prompt as an administrator. or shows visual bugs