I have Lightroom 6 (not CC) on a Windows machine. I'm prompted to log into Creative Cloud when I restart my computer (I don't have, use, or pay for Creative Cloud), and then when I launch Lightroom, it tells me to use the application I have to log into my Adobe account...AGAIN! And then to further add insult to injury, I'm prompted to enter in the license number of my product. I've gone through this process a dozen times now...SCREAM!!!