When you’re sending an email, you usually want your most common contacts to come up when you select recipients. To ensure this, you might want to change your default address book.

  1. On the Home tab, in the Find group, click Address Book.
    The address book is on the right side of the ribbon, on the Home tab.
  2. In the Address Book dialog box that opens, click Tools > Options.
    The Tools menu
  3. Under When opening the address book, show this address list first, choose the name of the address book you want to use by default.
    You can choose the name of the address book you want to access first.
  4. Click OK and close dialog boxes.