Problems Delete directory with files and subfolders

Hi at all,
i'm crazying with delete file
I have directory with files and subfolders
I use System.IO.Directory.Delete(path, true), but i have sometime again  a file or directory, i'm crazying , help me !
I use System.IO.DirectoryInfo , but it 's the same
oh noooooooo!!!!!
 
 
 
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