What is a good unique PC identifier?

Question

I\'ve been looking at the code in this tutorial, and I found that it uses My.Computer.Name to save settings that shouldn\'t roam between computers. It\'s entire

Answer 1

Take three identifiers that are semi-unique and semi-constant. Use the rule that 2 out of 3 is sufficient for a positive identification. Update the registered data for the 1 out of 3 that is occasionally wrong.