If you want to manage Windows 10 systems through Group Policy, you need to download .admx using this article:
How to create and manage the Central Store for Group Policy Administrative Templates in Windows
https://support.microsoft.com/en-us/kb/3087759
Precedent update could create and error and this article would help to solve:
KB3077013 “‘Microsoft.Policies.Sensors.WindowsLocationProvider’ is already defined” error when you edit a policy in Windows
https://support.microsoft.com/en-us/kb/3077013
If you like you can review this Italian article too.
http://www.devadmin.it/2016/09/19/windows-10-aggiornamento-group-policy-administrative-templates/?wt.mc_id=AID520875_EML_4791255