Do Go to the task sequences and look at the reference tab of each task sequence to see if the application is in the reference list. Look for the reference. After locating and deleting the task you are able to delete the application from Configuration Manager 2012.Delete the application!o Go to the task sequences and look at the reference tab of each task sequence to see if the application is in the reference list. Look for the reference. After locating and deleting the task you are able to delete the application from Configuration Manager 2012. Delete the application!