Injecting can be dangerous and difficult to reverse/change. PID deleted, and everything is standard again.
The pic he posted has nothing to do with OS key, and you can't add using the UEFI, so he still needs to get a Aptio tool. But posting this pic doesn't change what he needs to do or what he needs to learn for what he wants. At least the post was better than most and we know what he wants.
Don't waste your time with bios injection. Your key is not an OA3 key. It is not just "inject a key", you need to create a MSDM table, etc. As other users have suggested, add the pid.txt or an autounattend.xml - easy.