I experienced something similar. I installed Insider on one partition. On launch day, I got it to upgrade to RTM. Thinking my machine was already activated, I d

I experienced something similar. I installed Insider on one partition. On launch day, I got it to upgrade to RTM. Thinking my machine was already activated, I did a clean install on another drive (SSD). When the installation completed, the one on that partition did not activate. To get it work, I took an image of the partition with the activated Windows 10, restored it on the SSD, rebooted and voila - it was activated. I then did a Windows reset on the SSD copy and it did reset with an activated status.