Thanks for the reply Rowland: On Tue, 2016-04-12 at 12:21 +0100, Rowland penny wrote: > > Try again without the 'createcomputer="xxCOMPUTER"', your computer > seems > to already exist: > > The machine account already exists in the specified OU. I am told this is in fact a necessary feature: xxCOMPUTER is a class of computers we are allowed to be one. John