Disable protected mode for all users

Hi, I am using adobe reader DC. I would like to customise the installation such that "protected mode at startup" feature is turned off. Currently, i am using GPO from server to client.

i have tried using the following methods below but to no avail for ALL users

Creating key into 'Destination Computer' registry using adobe customisation wizard.

[HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Privileged]

"bProtectedMode"=dword:00000000

And tried this also,

HKLM\Software\Policies\Adobe\Acrobat Reader\10.0\FeatureLockDown\bProtectedMode with a value of 0