[HowTo] How do I delete the entire premiere project with the actual video files

the guide at https://helpx.adobe.com/premiere-elements/kb/delete-project-premiere-elements-7.html said there was something in the task panel? I don't even know what that is and I couldn't find an Edit>Project option in any panel. Thanks for any help Im running windows 10 on a dell inspiron 15" if thats of any use