The Group Policy Management Console reads ADMX files from the central store typically
\\<domain.com>\sysvol\<domain.com>\Policies\PolicyDefinitions
which on a DC is
C:\Windows\SYSVOL\domain\Polices\PolicyDefinitions
If you want to view ADMX files before placing them in the central store, copy them to C:\Windows\PolicyDefinitions. Copy the language files ADML files to the suitable subfolder.
Change this key to 1 then launch GPMC. Editing a policy will read from the local ADMX files not the central store.
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Group Policy\EnableLocalStoreOverrideType: REG_DWORD
Values:
0 - Use PolicyDefinitions on Sysvol if present (Default)
1 - Use local PolicyDefinitions always
If you want to view ADMX files before placing them in the central store, copy them to C:\Windows\PolicyDefinitions. Copy the language files ADML files to the suitable subfolder.
Change this key to 1 then launch GPMC. Editing a policy will read from the local ADMX files not the central store.
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Group Policy\EnableLocalStoreOverrideType: REG_DWORD
Values:
0 - Use PolicyDefinitions on Sysvol if present (Default)
1 - Use local PolicyDefinitions always
Updating central store
Install a downloaded MSI containing the ADMX/ADML files which may install to
e.g. C:\Program Files (x86)\Windows Server 2022 August 2021 Update\Policy Definitions
On the DC
Copy the required ADMX policy template files to
C:\Windows\SYSVOL\domain\Polices\PolicyDefinitions
Copy the the required ADML policy template files from the language specific folder e.g.
C:\Program Files (x86)\Microsoft Group Policy\Windows Server 2022 August 2021 Update\PolicyDefinitions\en-US
to
C:\Windows\SYSVOL\domain\Polices\PolicyDefinitions\en-US
The Policy options provided by the templates will now be visible in Group Policy Management Editor
