Stops running the existing scheduled daily backups.
This subcommand applies only to Windows Server 2008.
To disable a scheduled daily backup, you must be a member of the Administrators group, or you must have been delegated the appropriate permissions. In addition, you must run wbadmin from an elevated command prompt. (To open an elevated command prompt, click Start, right-click Command Prompt, and then click Run as administrator.)
wbadmin disable backup [-quiet]