Adobe Reader DC must disable Service Upgrades.

By default, Adobe online services are tightly integrated into Adobe Reader DC. Disabling Service Upgrades disables both updates to the product's web-plugin components as well as all services without exception, including any online sign-in screen.

Verify the following registry configuration:

Note: The Key Name "cServices" is not created by default in the Adobe Reader DC install and must be created.

Utilizing the Registry Editor, navigate to the following: HKEY_LOCAL_MACHINE\Software\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cServices

Value Name: bUpdater Type: REG_DWORD Value: 0

If the value for bUpdater is not set to “0” and Type configured to REG_DWORD or does not exist, then this is a finding.

Configure the following registry value:

Note: The Key Name "cServices" is not created by default in the Adobe Reader DC install and must be created.

Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cServices

Value Name: bUpdater Type: REG_DWORD Value: 0