Huh? What did I miss? Windows 7 original key code will not authenticate on its original machine anymore? It's an old HP Elitebook that had Win10 installed for a bit but originally came with Win7. I need to run a data logger that only works reliably on Win7 (unconnected to the net). The old "not a valid copy of Win7" nag screens are annoying. It won't authenticate unconnected or even connected to the net. I need to revisit what version Win7 I am using vs. what it came with maybe. Hmmm.....