Delete a List(s) but retain my contacts:
You can delete one, several or all of your lists in your Address Book without removing the contacts in your Address Book.
- Click on Address Book
- Click on "View Lists"
- Check the box on the left for each list you want to delete.
- At the bottom of the page click on "Choose Action" then select "Delete Lists" and click "Go." Note This will not delete your contacts from your Address Book.