Microsoft says a known Windows 11 issue causes the taskbar to freeze immediately after you sign in and is rolling out a fix.
If possible download the W2KSP2.EXE network installation from Microsoft's site and try installing from it.<P>If this is what you are installing from, redownload it.
Microsoft has admitted to issues with the taskbar and the desktop. That’s the bad news. But there is also some good news, ...
Microsoft’s KB5089549 update fixes Windows 11 taskbar freezes, desktop right-click issues, and Explorer reliability bugs.