UPDATE: I FOUND THIS, I HAVE ONE OF THESE CODES...
Activation servers might be overwhelmed at the times because of the volume of upgrades, so give it some time if you get an error message such as (0XC004E003, ,0x8007000D, 0x8007232b or 0x8007007B) Windows 10 will eventually activate as long as you upgrade using the appropriate method.
ORIGINAL PROBLEM:
I am in the preview program and when I got the public release of windows 10 it fixed my issue with activation. Now it's once again not activating after the most recent update installed.
Any help would be highly appreciated. I'm using an activation key that was given to us here in the forums, and was wondering if I need to go ahead and use the key that's on my sticker from my previous windows 7.
I don't want to try that without confirmation that it should solve my problem.
Thank you.