I am sorry nobody replied. I am having the same problem. And it is not like I don't have permission to delete these files nor are they system files. These are all just .mid files on an external hard drive downloaded and extracted from a 50,000 midi file zip folder. No matter how many times I try to rescan or tell it to delete the files again. It does not. five versions of ccleaner (up to latest) could not remove these files. Same files every time.