HTC One M8 for Windows - Manual (Page 27)

Deleting an account
§ Removing an account does not remove accounts and information
from the online service itself.
§ Your primary Microsoft account cannot be deleted. You'll need to
do a factory reset to remove it.
1. Swipe down from the top edge of the screen with one finger.
2. Tap All settings > email+accounts.
3. Press and hold the account you want to delete, and then tap delete.
Some personal data may be retained by the third-party app after
you have removed the account from your phone.
Getting contacts into your phone
There are several ways you can add contacts to your phone.
Online accounts Log in to your online accounts to import contact
information.
Phone contacts Create and store contacts directly in your phone.
Exchange ActiveSync ® Sync your work contacts with ActiveSync.
Bluetooth ® Receive contacts via Bluetooth from another
phone.
Setting up your phone 27