Some files and folders just refuse to get themselves deleted from your system memory, for no reason. However, there are some good options available with us forcombating such instances. As an example, FileExile!

FileExile is an easy to use program to help users gets rid of annoying and invalid files and folders that are no longer able to handle on their own.

Simply select a mode, browse to the target file and hit delete. The action when confirmend deletes the file/folder completely and permanently. The program is free for use and can be downloaded from here. The program does not contain any spware, adware or viruses.