Video guide on how to upgrade to Windows 11 official release version on October 5th 2021, on a computer with an unsupported processor and no TPM enabled.
This method should work for systems using legacy boot, non-secure boot UEFI, or other issues which do not meet the Windows 11 requirements but can install Windows 10.
Windows 11 Media Creation Tool:
Windows 10 Media Creation Tool: https://www.microsoft.com/en-us/software-download/windows10