Adobe Reader XI - Hide the Navigation Pane by default

1. Open regedit.

2. Change the value of the registry key:

    HKEY_CLASSES_ROOT\AcroExch.Document.11\shell\Read\command

    To:

    "C:\Program Files (x86)\Adobe\Reader 11.0\Reader\AcroRd32.exe" /A "navpanes=0" "%1"

Basically, we're simply adding the parameter /A "navpanes=0".

3. Done!