Windows 11 saying password will expire soon

The screenshot says the license will be expired not the password. You need to contact the sys admin or buy a new license to activate this copy.

Hello, 

This is an expected issue when you've volume license installed on a personal computer.

See if suggestions in this fix helps you: 

https://www.kapilarya.com/fix-your-windows-license-will-expire-soon-in-windows-11

Let us know if this helps!

Note: Included link in this reply refers to blog by a trusted Microsoft MVP.