The file to be deleted is: not locked, attribut normal, o byte The exception here is that it's filename ended with a space. Filename "25 The " explorer.exe gives the following message when the action is to delete it: Impossible de supprimer fichier: impossible de lire à partir du fichier ou de la disquette source This can be translated as: Impossible to delete file: Impossible to read from file or from diskettesource After a Google search I did the following (resulting messages are translated): del "25 The " del "\\.\cprob\25 The " Impossible to find ... 25 The chkdsk /f c: problem still persistant Cgnuwin32\bin\rm -f "25 The " Cgnuwin32\bin\rm -f "\\.\cprob\25 The " No message RmDir \\.\Cprob /s /q 25 The - Le fichier spécifié est introuvable. 25 The - Specified file can not be found CSysinternalsSuite\sdelete.exe ".\25 The " No files found that match Boot with safety mode + del Impossible to find hardlinkcreate.exe ".\bof.txt" ".\25 The " Specified file (2) can not be found fsutil file createnew ".\25 The " 0 25 The created. The file created here is "25 The" not "25 The ". From my humble opinion a direct intervention in NTFS is the only way togo. But I don't know how. Someone can help me ? Thank you in advance.