The restore of a backup program created a directory,which recursivly
has hisself as subdirectories

trying to delete the directory in the explorer gives me file system
error 1148

chkdsk /f does not fix the problem neither does rd /s in cmd

what else couldt i do to delete these folders ?

Try this Microsoft article.
http://support.microsoft.com/defaul…KB;EN-US;120716