Where do I get the ADMX templates?
You can find them on the download page:
https://specopssoft.com/support/specops-client/download
Once the templates are downloaded and extracted locally, we recommend that you copy them to the ADMX Central Store on your AD’s SYSVOL share. This will make them available from any admins Group Policy Management Console. You would copy the files to the following locations:
Specops.Client.admx would be copied to \\[domain]\SYSVOL\[domain]\Policies\PolicyDefinitions
Specops.Client.adml would be copied to \\[domain]\SYSVOL\[domain]\Policies\PolicyDefinitions\en-US
If you are updating the ADMX templates, you would overwrite the old ones. The ADMX templates are backwards compatible with the older versions of the clients.