I'm trying to restrict OneDrive usage on Windows 8.1 and Windows 10 Clients
I'm following an article on TechNet about this, and says on my 2012 R2 domain controller to modify the GPO under the following:
In the Group Policy Management Editor, under Computer Configuration, click Policies, click Administrative Templates, click Windows Components, and then click OneDrive.
However, OneDrive doesn't appear. Any ideas on what I could do here?
Get the admin templates for Windows 10 (Windows 8 would also suffice, but since you have Win 10, get the newer ones!). You will need to install these into the SYSVOL\PolicyDefinitions folder on a DC.
ADMX download (Microsoft.com) for Windows 10.