Open Recycle bin via double-click of the Desktop icon. Do NOT click on any
items in there; you can then go to File>Empty Recycle Bin. Click on "Yes"
in the dialog box. May be instant to a few seconds, depending on how much
is in there.
OR you can click on just specific items, then File>Delete. Note that
"Empty...Bin" is greyed out if this is done.
