Windows 11 not working

[JianYu]

Windows 11 stopped working when I opened my PC today. I have no idea what is going on and what should I do. Besides, when I try to run settings, it shows this.

[#2]

Fix from @AaronZhang at https://techcommunity.microsoft.com/t5/windows-11/missing-start-button-and-other-icons-from-taskbar/... works for me.