No, I never got any notices. I just restarted and the computer is running but the screen is black. I have been just waiting to see what is going to happen before I do a hard shutdown. It's been about 15 minutes now. I'll give it a few more before I restart it. It seems to me that even during the upgrade, it should not do that. Plus, I can do a clean install of 10 in about 5 minutes.
It's fun watching all the excitement building up in the anticipation of the official release of Windows 10. Reminds me of standing in line with my son at midnight for the release of Windows 95! I think I like this way best. I've had every beta from the beginning of windows. This is the smoothest. YMMV Anyway, Bring it on!