To create the central store follow steps below:
1.Create the root folder for the central store %systemroot%\sysvol\domain\policies\PolicyDefinitions on your domain controller.
2.Create a subfolder of %systemroot%\sysvol\domain\policies\PolicyDefinitions for each language your Group Policy administrators will use. For example, to create a subfolder for U.S. English, create the subfolder: %systemroot%\sysvol\domain\policies\PolicyDefinitions\EN-US. Each subfolder is named after the appropriate ISO-style Language/Culture Name. For a list of ISO-style Language/Culture Names, see Valid Locale Identifiers.
3. Then we need to Populate the Central Store ADMX Files. So Open a command prompt : click Start, click Run, then type cmd
4. To copy all the language-neutral ADMX files from your Windows to the central store on your domain controller using the xcopy command, type
xcopy %systemroot%\PolicyDefinitions\* %logonserver%\sysvol\%userdnsdomain%\policies\PolicyDefinitions\
5. To copy all ADMX language resource files from your Windows to the central store on your domain controller using the xcopy command, type:
xcopy %systemroot%\PolicyDefinitions\EN-US\* %logonserver%\sysvol\%userdnsdomain%\policies\PolicyDefinitions\EN-US\
Once we’ve copied the AMDX and AMDL files, we can edit a GPO in the GPMC to verify that we’re using the Central Store. In the Group Policy Management Editor, the Administrative Templates section should show “Policy definitions (ADMX files) retrieved from the central store.”