Adobe DC cannot disable PDF in Browser at computer level even via Group Policy

I run a network where we have to lock down machines for PCI Compliance. We have been using Adobe Reader 11 and disabling browser integration via a Group Policy key, however, it is no longer working with Adobe DC.

"bBrowserIntegration"=dword:00000000

no longer works

Now we are running IE 11 on Windows 7 and cannot disable Adobe DC PDF in browser because even if the Plugin is disabled, the browser STILL shows the PDF in the browser somehow without the plugin? How can I disable the PDF in Browser at a COMPUTER level without having to manually set for all 88,560 users?

I have gone into Group Policy and disabled the following plugin via policy. Computer Configuration - Administrative Templates - Windows Components - Internet Explorer - Security Features - Add-on Management = Add-on list

This policy setting allows you to manage a list of add-ons to be allowed or denied by Internet Explorer.

If you enable this policy setting, you can enter a list of add-ons to be allowed or denied by Internet Explorer. For each entry that you add to the list, enter the following information:

Name of the Value - the CLSID (class identifier) for the add-on you wish to add to the list.

To specify that an add-on should be denied enter a 0 (zero) into this field.

The GUID I entered is {CA8A9780-280D-11CF-A24D-444553540000}

The Value is 0   = Disabled.

I launch IE and go to Add-On Management and the following Add-In IS disabled and the "disable" and "enable" are greyed out. Yet the PDF still loads in the browser.

Name:                   Adobe PDF Reader

Publisher:              Adobe Systems, Incorporated

Type:                   ActiveX Control

Architecture:           32-bit and 64-bit

Version:                15.6.30198.192149

File date:              ‎Saturday, October 01, ‎2016, ‏‎1:22 PM

Date last accessed:     ‎Today, ‎January ‎16, ‎2017, ‏‎43 minutes ago

Class ID:               {CA8A9780-280D-11CF-A24D-444553540000}

Use count:              2

Block count:            2

File:                   AcroPDF64.dll

Folder:                 C:\Program Files (x86)\Common Files\Adobe\Acrobat\ActiveX