How to change the default address book in Outlook 2003 2007 or 2010

Outlook 2010

1. From the Find group on the Home tab, select Address Book.
   
2. In the Address Book window that appears, from the Tools menu, select Options... .
   
3. Under "When opening the address book, show this address list first:", use the scroll-down menu to select the appropriate listing (i.e.,Global Address Book, or Outlook Address Book).
   
4. To save the changes, click OK.
   
5. To close the Address Book, click the X in the top right corner.

Outlook 2007 and 2003

1. From the Tools menu, select Address Book... .
   
2. In the Address Book window that appears, from the Tools menu, select Options... .
   
3. Under "Show this address list first:", use the scroll-down menu to select the appropriate listing (i.e., Personal Address Book, Global Address Book, or Outlook Address Book).
   
4. To save the changes, click Apply.
   
5. To exit, click OK.