Solved How to install Windows 10 22H2 with secure boot 2023 enabled

this was done because a forum member was having problems installing Windows 10 22H2
on a system with the new secure boot and secure boot 2023 certs enabled.

good news, i have done it.
i now have a Rufus bootable USB pen drive with Win10 22H2 booting to the install window using the Win11 25H2 bootloader
with no secure boot violations with the new secure boot 2023 cert being used for the install of Win10 22H2.

you can use Win10 and Win11 ISO's if you have already downloaded them to create the Rufus bootable USB pen drive
or you can use Rufus to download the Win10 and Win11 ISO's if you dont have them already.

first.
you will need a 16GB USB pen drive (8GB isnt big enough)
the latest copy of Rufus from the Microsoft Store.

### Part A ###
this is using Rufus to download the Win10 22H2 ISO
then create a bootable USB pen drive from this download.

once the download has completed and the bootable Win10 USB pen drive has been created
open explorer and from within the Win10 USB drive CUT and PASTE 2 folders to the desktop
Sources folder
Support folder

the Sources folder is about 5.7GB
the Support folder is about 316.9KB

### Part B ###
this is using Rufus to Download the Win11 25H2 ISO
then create a bootable USB pen drive from this download.
an option window will open tick any or all options you require but make certain you enable/tick
>>> 'use 2023 secure boot option' <<<

once the download has completed and the bootable Win11 USB pen drive has been created (using the same USB pen drive)
open explorer and from within the Win11 USB drive DELETE these 2 folders
Sources folder
Support folder

### ###
then copy and paste from the desktop the 2 folders (Sources and Support) that came from the Win10 USB pen drive
into the Win11 bootable USB pen drive.

once this has finished transferring the folders from the desktop to the Rufus bootable pen drive
close all open windows and restart the system
then on restart bring up the boot menu and boot from this Rufus bootable pen drive

it will take a few seconds but the Win10 22H2 install window will appear
and from there you can install Windows 10 22H2 with secure boot enabled and the new 2023 certs in place.

best of luck Steve ..
edit by me to add a detail that i missed.