We have a file server running Windows Server 2003 Standard. On frequent occasions we have PDF files that cannot be renamed, deleted or moved on a shared network drive.
I've tried using various unlocking tools to scan the files but none report the file to have any locks on them and none can delete these files. The only way you can delete, move or rename the files is to reboot the server (not a practical solution!). Also if you check the open files/sessions on mmc these files don't appear to be on the list!