New installation: Can't Activate Windows 10

I'm trying to help out one of our nurse practitioners by installing Parallels 15/Windows 10 on her new MacBook Air. Parallels installation went fine, everything seems to be working, but Windows is not activated. This is keeping us from setting up a local account and making some other needed tweaks. I have scoured emails and submitted a message via Facebook. Can anyone help with these questions:

1. Should Parallels have activated Windows upon installation?
2. Where is the Windows Product Key? Did I miss an email/notice/setting somewhere?
3. Is there a workaround to get it activated without the key?

Any information would be greatly appreciated.

 

Parallels does not contain a Windows 10 key.
This must be purchased separately.
So buy and activate a Windows license.
greetings