Qualifiers

/ALL
   Deletes all key definitions in the specified state; the default
   is the current state. If you use the /ALL qualifier, do not
   specify a key name. Use the /STATE qualifier to specify one or
   more states.


/LOG
      /LOG (default)
      /NOLOG

   Controls whether messages are displayed indicating that the
   specified key definitions have been deleted.


/STATE
      /STATE=(state-name[,...])
      /NOSTATE (default)

   Specifies the name of the state for which the specified key
   definition is to be deleted. The default state is the current
   state. If you specify only one state name, you can omit the
   parentheses. State names can be any alphanumeric string.