Refresh Windows Taskbar [extra Quality] -

Since there is no simple "Refresh Taskbar" button built into the interface, users have developed workarounds to force the refresh:

Refreshing the Windows Taskbar is a troubleshooting act born from necessity. It is a manual fix for a system that occasionally loses track of its own moving parts. While right-clicking the desktop remains a nervous habit for many, the true solution lies in restarting the Windows Explorer process—a digital deep breath that reminds the operating system to wake up and pay attention. refresh windows taskbar

If the above methods don't work, you can try resetting the taskbar to its default settings. Here's how: Since there is no simple "Refresh Taskbar" button

Here’s why that’s useful and how it’s done: refresh windows taskbar