Global Address Book Not Available in Outlook 2013

Symptoms:  User cannot view shared calendars
                    Cannot check network address contacts / network address book not viewable
                    Outlook won't send email to contacts not in local Outlook email contacts address book
                    Offline address book for cached account was missing in computer files
                    User can send mail to network addresses in the OWA ("Outlook Web App") successfully

Solutions Attempted:

- Attempted to download the global address book from File -> Account Settings -> Download Address Book (default global address list did not show as an option to download)
- Shift + Ctrl + B to open the address book, did not show global address book in Address Book list or in Tools menu -> Options for address book
- Start -> Run -> Outlook /safe command to open Outlook in Safe Mode, but still showed same symptoms.

Resolution:

- Found a Microsoft article that directed me to delete a registry key.  Navigated to here for Outlook 2013:

HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Outlook\Profiles\<profile name>

Then searched for the 001e660e registry entry.

Upon deleting this entry everything began working normally.

The user was then able to download the network address book, view shared calendars, and send mail to addresses in the global address book.


SOURCE:

https://support.microsoft.com/en-us/kb/3031401