Windows 10 Clients contacting armmf.adobe.com constantly

We have noticed in our organization that Windows 10 clients have been constantly contacting armmf.adobe.com to check for updates even after I have made the following registry changes as per Windows Updates

I have changed the Mode registry value to 0 from 3 in the following path (using GPO): ​

When this did not resolve the issue, I even changed iCheck and iCheckReader values to 0 from 3 even though the above registry setting should override these settings from the below path (using GPO):

HKLM\SOFTWARE\Wow6432Node\Adobe\Adobe ARM\1.0\ARM

Please advice on how we can disable the automatic update check even after these changes were made. Acrobat Reader​