This post shows how to find Windows 11/10 Product Key using Command Prompt or PowerShell, from BIOS, UEFI or Registry. It works for Retail, OEM, etc, licenses. It is to be noted that a Retail product ...
Windows 10 product usually works with Windows 11, but the problems occur if your Windows 10 license is an OEM license (tied to original device hardware and not transferable) rather than a Retail ...