Outlook 2016 missing Outlook Address Book tab

I have a client that's got Outlook 2016 running on Windows 10 and uses Office 365/ Exchange.  They have four PC's and shared a Public Folder address book with all four PC's used fine for sometime.  However last week PC1 has lost connection to the shared address book.  

When in Outlook 2016 I click on the folders icon (bottom left-hand corner) and then select the exchange account (Events) to see the shared address book.  I then right click on the shared address book and select add to Favorites.  Then I click on contact/people icon (bottom left-hand corner) and then right click on the shared address book within favorites.  This should then display a dialog box with around five tabs along the top, but I'm only getting three tabs and missing the tab Outlook Address Book.  

The question is how do I get this tab back (Outlook Address Book) so that I can tick the tick box to make it appear within the list of address books?
scratcheIT ConsultantAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Jackie ManIT ManagerCommented:
Check the permission of the shared mailbox in Exchange / Office 365 and double check whether the user has been removed the permission in shared mailbox.
scratcheIT ConsultantAuthor Commented:
Thanks for the reply, yes sorry I forgot to mention that I have checked the security rights and they are all correct.  I think the issue has been caused by the user on PC1 somehow.
Jackie ManIT ManagerCommented:
Have you tried to remove the mail profile for user 1 and add it back again?

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
scratcheIT ConsultantAuthor Commented:
No, I haven't tried removing the mail profile yet, my client is still trying to find his password hence why I haven't.  I shall get the password and try this out.
scratcheIT ConsultantAuthor Commented:
My client found the password for his email accounts so I have created a new Outlook profile and set up all three email accounts within it.  They are now working fine with the shared contacts as requested...
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows 10

From novice to tech pro — start learning today.