If Microsoft Outlook is set to Cached Exchange mode and you open the address book, the Global Address List (GAL) is not displayed by default. Not downloading the Outlook address book is often a problem encountered by many users, and it occurs because the BITS queue is full.
Update: Stop getting error messages and slow down your system with our optimization tool. Verify that the Cache Exchange mode is enabled.Updating the Offline Address Book manually.Install the latest updates for Office and Office 365 Desktop.
