Outlook offline address book not updating
This can cause the “Updating Address Book” status appearing for a long time.
Outlook is helping you complete other activities and does not allow the address book update to interfere.
I like to compare Outlook's Address Book to a shoe box or desk drawer where, in the past, we kept address books, business cards, and scraps of paper with addresses or phone numbers.
(This could take several minutes) Outlook shows the "Updating Address Book" status for a long time. Outlook has a throttling feature that slows the address book update when you are working in Outlook.
Many users are easily confused by Outlook's contact options - you have Contacts, the Address Book and the auto-complete list.
Add Outlook 2010's Suggested Contacts and there is a lot to be confused about.
Outlook Contacts folders and GAL (for Exchange users) are the address books, cards, and scraps of paper containing addresses stored within the drawer.
Note: The top level listing "Outlook Address Book" is the container that holds all address lists (for many people, Contacts is the only list).