Hello nagelgnaN,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand you are looking to find your MAC address. I am providing you with a link to a wikiHow page titled How to Find the MAC Address of Your Computer, which will provide you the steps to follow to obtain your MAC address.
I hope I have answered your question to your satisfaction. Thank you for posting on the HP Forums. Have a great weekend!