To be clear, it is NOT the SN, nor the UUID#, nor is it the MAC address. it is specifically the Machine ID #. The software I am trying to install requires it. Please help! Thanks so much!
Are you sure it's not asking for the Serial number or MAC address? What is the software you're installing? message edited by beachyhbt
You can just click the apple icon at the top of the desktop and choose "about this Mac".