Displays or alters the encryption of directories files on NTFS partitions. CIPHER /E | /D | /C /S:directory /B /H pathname ...

Displays or alters the encryption of directories [files] on NTFS partitions.    CIPHER [/E | /D | /C]           [/S:directory] [/B] [/H] [pathname [...]]      CIPHER /K      CIPHER /R:filename [/SMARTCARD]      CIPHER /U [/N]      CIPHER /W:directory      CIPHER /X[:efsfile] [filename]      CIPHER /Y     CIPHER /ADDUSER [/CERTHASH:hash | /CERTFILE:filename]           [/S:directory] [/B] [/H] [pathname [...]]     CIPHER /REMOVEUSER /CERTHASH:hash          [/S:directory] [/B] [/H] [pathname [...]]    CIPHER /REKEY [pathname [...]]      /B        Abort if an error is encountered.  By default, CIPHER continues                executing even if errors are encountered.       /C        Displays information on the encrypted file.      /D        Decrypts the specified files or directories.      /E        Encrypts the specified files or directories. Directories will be                marked so that files added afterward will be encrypted. The                encrypted file could become decrypted when it is modified if the               parent directory is not encrypted. It is recommended that you                encrypt the file and the parent directory.     /H        Displays files with the hidden or system attributes.  These               files are omitted by default.     /K        Creates a new certificate and key for use with EFS. If               this option is chosen, all the other options will be ignored.     /N        This option only works with /U. This will prevent keys being               updated. This is used to find all the encrypted files on the                local drives.     /R        Generates an EFS recovery agent key and certificate, then writes               them to a .PFX file (containing certificate and private key) and                a .CER file (containing only the certificate). An administrator               may add the contents of the .CER to the EFS recovery policy to                create the recovery agent for users, and import the .PFX to                recover individual files.  If SMARTCARD is specified, then writes               the recovery key and certificate to a smart card.  A .CER file is                generated (containing only the certificate).  No .PFX file is                generated.                   /S        Performs the specified operation on directories in the given               directory and all subdirectories.     /U        Tries to touch all the encrypted files on local drives. This will               update user's file encryption key or recovery agent's key to the               current ones if they are changed. This option does not work with               other options except /N.     /W        Removes data from available unused disk space on the entire                volume. If this option is chosen, all other options are ignored.               The directory specified can be anywhere in a local volume. If it                is a mount point or points to a directory in another volume, the               data on that volume will be removed.     /X        Backup EFS certificate and keys into file filename. If efsfile is               provided, the current user's certificate(s) used to encrypt the               file will be backed up. Otherwise, the user's current EFS                certificate and keys will be backed up.     /Y        Displays your current EFS certificate thumbnail on the local PC.     /ADDUSER  Adds a user to the specified encrypted file(s).  If CERTHASH is               provided, cipher will search for a certificate with this SHA1                hash.  If CERTFILE is provided, cipher will extract the                certificate from the file.      /REKEY    Updates the specified encrypted file(s) to use the configured               EFS current key.     /REMOVEUSER     Removes a user from the specified file(s).  CERTHASH               must be the SHA1 hash of the certificate to remove.           directory A directory path.     filename  A filename without extensions.     pathname  Specifies a pattern, file or directory.     efsfile   An encrypted file path.      Used without parameters, CIPHER displays the encryption state of     the current directory and any files it contains. You may use multiple     directory names and wildcards.  You must put spaces between multiple     parameters.