How do I remove duplicated contacts?

1. From the Home screen, tap , and then find and tap People.
2. Tap > Manage contacts > Remove duplicates.
3. Tap Phone if you're removing duplicates that are stored in the phone storage, or tap the account that has duplicated contacts.
4. Tap OK to delete all duplicated contacts. Or to select which duplicates to remove, tap Cancel. Choose which ones you want to remove, and then tap Delete.