Updating the adm files
You also need updated Group Policy settings files, Group Policy Administrative Templates or simply updated ADMX files for the new operating system.
You can get these ADMX files in different ways either download them from Microsoft Download pages: Administrative Templates (.admx) for Windows 10 or in the folder “%Win Dir%\Policy Definitions” from the operating system you want to manage, make sure it is fully updated with all service packs, patches etc.
Now logon to your Domain Controller and browse to c:\windows\ and rename Policy Definitions to Policy Here is a quick howto on upgrading the GPO templates on a Server 2008 R2 domain controller with the newest ones from a Windows 8 machine.There are a few additional ones that you can get from a Server 2012 machine as well that are not included with Windows 8. Open an elevated cmd prompt and run the following commands.Tip To upgrade your files manually, in Group Policy, right-click the Administrative Templates folder (either instance), and then click Add/Remove Templates .In order to manage Windows XP clients, administrators need a computer running Windows XP, which comes with updated Administrative Template files (.adm), as well as a computer running Windows 2000 Server.
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If you install RSAT on the target computer and manage Group Policies from there you are fine, no need to change any thing, but if you want to manage the Group Policies from a server that are not the latest and maybe not the same templates, you need to do one of two things.