Enable Protected Mode at startup

Enables Protected Mode and thereby sandboxes Reader processes.

Protected Mode is one of the application's most advanced security features and should be enabled to protect user systems and data. Possible values include:
0: Don't enable protected mode.
1: Do enable protected mode.

Edit > Preferences > General > Enable Protected Mode at startup

Supported on: Undefined

Registry HiveHKEY_LOCAL_MACHINE
Registry PathSOFTWARE\Policies\Adobe\Acrobat Reader\2017\FeatureLockdown
Value NamebProtectedMode
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

acrobatreader2017.admx

Administrative Templates (Computers)

Administrative Templates (Users)