Hi anna,
Based on your description, could you tell me where did you download the Office 2013 Pro-Plush? And Office 2013 supports three types of Microsoft product activation in an enterprise environment:
- Key Management Service KMS
- Multiple Activation Key (MAK)
- Active Directory-Based Activation ADBA
Which way did you use to setup Office?
And you said >>downloading the Office 2013 Volume License pack and it fails because it is Windows 10<<. As far as I know the Windows 10 is Preview edition, this edition of Windows is not an official edition. I suggest you could also consult your
issue in Windows 10 forum.
http://answers.microsoft.com/en-us/insider/forum/insider_wintp?tab=Threads
https://social.technet.microsoft.com/Forums/en-US/home?category=WinPreview2014
And please provide more information about you issue, Im glad to help and follow up your reply.
Regards,
George Zhao
TechNet Community Support