(This could take several minutes) Step 2: Uncheck the box next to Download changes since last Send/Receive.
(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.
Do send/receive settings affect automatic 24-hour offline address book downloads?
The Download offline address book check box in the Send/Receive Settings - "Group_name" dialog box does not affect the 24-hour download process.
In Cached Exchange Mode, Outlook 2007 & 2010 downloads a local copy of the Global Address List (GAL), but only updates it every 24 hours.