My problem is that I have an old Norton 360 backup file approx 40 GB in size that I can't delete. I removed Norton 360 from my system without deleting this file. Now when I try to delete it using Windows XP I get an "Error Deleting File or Folder" message which says "Cannot delete DiskID: access denied. Make sure the disk is not full of write protected and that the file is not curently in use." I talked to Symantec support who told me the only way to remove this file was with the original installation of N360--too late for that now! The Norton Removal Tool is no good--it apparently removes programs but not backup files. I tried to re-format the WD WorldBook external drive on which this backup file resides to no avail. Western Digital support informed me that this drive cannot be re-formated. Anyone have any ideas as to how I might free up 40 GB's of space by eliminating this file?