wbadmin disable backup
Stops running the existing scheduled daily backups. Windows commands reference
On Windows
Windows
Stops running the existing scheduled daily backups. To disable a scheduled daily backup using this command, 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, by right-clicking Command Prompt, and then selecting Run as administrator.
wbadmin disable backup [-quiet]
-quietRuns the command without prompts to the user.