Create a Central Store The central store is a folder structure created in the sysvol directory on the domain controllers in each domain in your organization. Even if you are not running the latest OS in you environment there is no issues with updating the ADMX/ADML files as all the setting are fully backwards compatible and will just mean one less step to do when you do upgrade in the future. Choose the current package (in this case 10.0). Choose Add. In the Add Upgrade Package dialog, do the following:Select Current GPO. Select the package you want to upgrade.