How to stop a Windows Backup job

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\Users\Administrator.LOCAL>wbadmin stop job
wbadmin 1.0 – Backup command-line tool
(C) Copyright 2013 Microsoft Corporation. All rights reserved.

Are you sure you want to stop the current operation?
[Y] Yes [N] No y

The backup operation ended before completing.

C:\Users\Administrator.LOCAL>