Use the keyboard shortcut Windows + R to open the runbox.Tip: you may restart the explorer process from the command line as well: The process restarts the Explorer process, which is responsible for the taskbar (and many other things). Right-click on the process and select 'End task' from the context menu.Select 'more details' if the basic version is displayed.Use the keyboard shortcut Ctrl-Shift-Esc to bring up the Windows Task Manager.Note that it is recommended to find the cause for recurring issues, as you may not want to restart Explorer regularly to correct the issue.
It is a quick fix that should resolve the issue. Many issues that you run into may be resolved by restarting the Explorer process on the Windows 11 machine.