The just above code is incorrect as shown:
SELECT
sysobjects.name AS trigger_name
--,USER_NAME(sysobjects.uid) AS trigger_owner
--,s.name AS table_schema
--,OBJECT_NAME(parent_obj) AS table_name
--,OBJECTPROPERTY( id, 'ExecIsUpdateTrigger') AS isupdate
--,OBJECTPROPERTY( id, 'ExecIsDeleteTrigger') AS isdelete
--,OBJECTPROPERTY( id, 'ExecIsInsertTrigger') AS isinsert
--,OBJECTPROPERTY( id, 'ExecIsAfterTrigger') AS isafter
--,OBJECTPROPERTY( id, 'ExecIsInsteadOfTrigger') AS isinsteadof
--,OBJECTPROPERTY(id, 'ExecIsTriggerDisabled') AS [disabled]
FROM sysobjects
/*
INNER JOIN sysusers
ON sysobjects.uid = sysusers.uid
*/
INNER JOIN sys.tables t
ON sysobjects.parent_obj = t.object_id
INNER JOIN sys.schemas s
ON t.schema_id = s.schema_id
WHERE sysobjects.type = 'TR'
EXCEPT
SELECT OBJECT_NAME(parent_id) as Table_Name FROM sys.triggers