thanks everyone, I have used unlocker in the past and it is good, so just got the latest version thanks to your link Mat. That should sort the access denied bit. Now running delete again, still says it is deleting from E which is the DVD drive (no disc in it) and it does seem to be deleting files but taking forever, it says 2mins to delete and the progress bar does not move one section after 15mins.
OH OH OH, Big trouble here by the look of it. Files were originally taken from a DVD so max size 4.7g. They are now duplicating themselves and at present taking up about 120g of my hdd, this is no doubt why the machine is taking so long to delete them. I do of course have anti virus which should run automatically, need to check this out now.