When you delete a memorized report, you are not actually deleting that report; you are deleting the customized, memorized format. The original default formats restore after you delete the memorized version.
Select the Reports toolbar button.
The Memorized Reports window opens.
Select the drop-down arrow in the Report Type field.
Select the applicable report type category that the report was saved under.
Select on the report name from the list that you want to delete.
Right-click and select Delete.
A confirmation message appears.
Select OK.
To close the Memorized Reports window, select Close.