From the File menu select Delete
Filters to display the Delete Filters dialog.
Select the filter type, under which the filter to be deleted is
categorized. The Filters Available to
Delete list displays all available filters of the selected filter
type.
Uwaga: If you are
working in full mode, the Filters Available to
Delete list contains both system and user filters. If you are
working in normal mode, the Filters Available to
Delete list only contains user filters.