Hi,
It can be done, I have upgraded a 19043.1202 to 22454.1000 and also done a clean install of 22454 on a box in the red zone which is still Legacy BIOS.
The problem is that if I describe all the steps, MS may block it again and plug the holes on the next Build, then you will be back where you are. 😒
Also because it is unsupported configuration you cannot really report any of the problems on FBH and expect a reply or a solution, it is all at your risk as shown in the message .
From what I see you have a UEFI box, only missing TPM and also the processor model 4790 is unsupported.
I assume that you have Secure Boot on, so that should not be an issue.
The steps are different depending on where you start from.
- Clean install.
- Upgrade from Windows 10.
- Upgrade from 22000.168 to 22454.1000 with Installation Media (not tried that yet).
I see that you currently have 22000.168, are you still in insider Release Preview Channel or did they kick you out completely ?
Maybe we can find a way to do an update from 22000.168 to 22454.1000 with the installation media.
You have to decide which of the 3 cases you want to use.
First find out if you are still in insider R.P. or not ?