Adobe has their addins setup so that even when people disable them, after an update of either Outlook or Adobe they default back to automatically loading. How do we stop that?

Hi ​@CBNYC, 

Thanks for reaching out. If you are using the Windows operating system, let's try the following:

Go to Start-> Registry Editor-> Location:  Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\Outlook\Addins\PDFMOutlook.PDFMOutlook

To completely disable the add-in set DWORD  LoadBehavior to 1 in the following registry key

To prevent re-enabling PDFMaker and suppress the dialog/silently enable PDFMaker

•   For x64 Acrobat create Computer\HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\DC\AVAlert\cCheckbox
•   For x86 Acrobat create Computer\HKEY_CURRENT_USER\Software\WOW6432Node\Adobe\Adobe Acrobat\DC\AVAlert\cCheckbox

After creating the above key, you may create a

• DWORD iAlwaysEnablePDFMAddin and set it to 2. This will ensure no dialog is shown, and the addin will not be enabled.

Let us know how it went at your end. 

~Tariq