Refresh your Unprocessed Tasks list when needed. Tasks you triage in the Work Stream or process (Unscheduled list) will automatically disappear.
If you processed tasks correctly but they do not leave the Unscheduled list, make sure you set up your Unprocessed Tasks list correctly.
Access Donedesk’s Unscheduled List
click “Tasks to Do”, then “More”, then “Unscheduled”