May the community welcome you.Good day. I understand that you require assistance regarding running UEFI diagnostics on the computer.I will be a delight to assist you with this.
Superb description and great diagnosis of the issue before posting. Kudos to you on that score. You are a valued HP customer and I take it as a privilege to share this platform with you.
Is your computer working correctly or is there an issue with the computer?
For a start please click herefor assistance on how to run the UEFI diagnostics on the computer. Please follow the option "Testing using HP PC Hardware Diagnostics (UEFI)" and also run the "Running the UEFI Component Tests"
If any component fails, it will display a failure code. That will mean the computer hardware is faulty and it needs to be repaired.
Hope this helps. Let me know how this goes. I genuinely hope the issue gets resolved without hassles and the unit works great.Please reach out for any issues and I'll be there to assist you.
To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help.
If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles.