What OS and version of Elements are you using? It's possible that the photos are being auto-analyzed and can't be deleted while they are going through the analysis. What happens if you reboot the computer and try to delete the photos immediately after launching the program?
Thanks for your reply. I have tried a few different things but sadly with no success. I have changed my OS and this still makes no difference. I’m still being told that “the files can’t be deleted as one or more of the files may be locked”. I now find that I have an added problem. If after exiting Elements (18 by the way) and closing the prog down I find that if I want to re enter PE for some reason a note comes up on screen saying that I must close the prog, which I already have, before I can get into it PE again. The alternative being that I have to reboot. I’m struggling to get any where with this so any other suggestions would be welcome. Robert M.