I am confused as to which files to delete. I have found NO information about the subject that answers my problem, which is this. If I have a lot of duplicate file to delete, should I delete ALL but one of each group of duplicate files or do I need to keep 1 of them each for each
program that uses the particular file.Will a program find its file, where ever it is, or is it possible for 2 programs to use the 1 file at the same time.If not, how will I know which program needs a copy of the file saving?