1.With Outlook open, switch to People.
2. Click on New Email narrow key under Home.
3. Click Group.
4. In Contact Group window, type the group name.
5. Click on Add Members tab. 6. Select the Contacts or Address book.
6. Add the members from the contacts or addresses.
7. Add the members from the contacts or addresses.
8. Save and Close.
Please view this step by step video: