ARDC-CN-000100 - Adobe Reader DC must disable Online SharePoint Access.
Information
Disabling SharePoint disables or removes the user's ability to add a SharePoint account access controls the application's ability to detect that a file came from a SharePoint server, and disables the check-out prompt.
Solution
Configure the following registry value: Note: The Key Name 'cSharePoint' 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\cSharePoint Value Name: bDisableSharePointFeatures Type: REG_DWORD Value: 1