Back in September, you reported that you could create an unremovable directory using the code rpt.dir <- paste("c:/report/testR","bestsub",spe="/") dir.create(rpt.dir) The problem was that rpt.dir was set to "c:/report/testR bestsub /" and Windows utilities have trouble with that name. This is a Windows bug, not an R bug. Just in case you haven't yet been able to remove the directory, one way to do so is to go to a command window, and run cd c:\report rmdir "testR bestsub \" Duncan Murdoch