It happened to me. I happened to check my activation status (right click on 'This PC') and instead of the usual 'Windows is activated' it said that I should log on to the internet (of course I already was) to activate my copy of Windows, implying that I was not activated. So then I went into Settings and clicked on activation it gave me an error that the Windows activation servers could not be reached (tried this several times for a substantial period of time). I then proceeded to hit the activation troubleshooting icon, and after a minute I got a message saying that my system was licensed with a digital hardware license for Windows 10 Pro and that I should install Windows 10 Pro, apparently to make use of such license (I at the time had and still have Windows 10 Pro on the system). Having no other apparent choice I took to the phone and eventually got a knowledgeable person who proceeded to try everything I had tried by remote access, of course to no avail. Long story short--I was told that this is a known issue and that it happens sometimes but not always when upgrading to the Creators Update and that my system was one of those that experienced the issue. After I gave them my original Windows 7 key from which I had upgraded to th1, th2, rs1 and now the Creators Update they wound up giving me a new Windows 10 Pro key with the advice that it would replace my 7 key and that that 7 key would no longer be valid. So now I am activated with the new key they gave me instead of the digital license--ok, I suppose, in my book (pretty sure that upgrading to 10 from 7 for free deactivates your old 7 key anyway). So don't forget to check your activation status if you've upgraded to the Creators Update or after you've upgraded should you plan to do so. Should you encounter this problem I am advised that the best phone number to call (at least in the U.S.) is (800) 642-7676. Update: Please list your results with the update. In other words, are you still activated?