Where did my photos go

Hi,

Just starting to use elements 15. Copied  my photos from a hard disc, but they entered as double. Therefore I tried to find a means to remove on battery. But what I managed to was that they were exported somewhere, I hope a closed space where there other people´s photos as well, under specific addresses. It looked much like shared space where people let other to view their chosen photos. Could you pl advise on where to find the space and how to remove my photos from there. Regards Jorma