cd /d c:\
du -l 1 .
...
output of du showing big directories
...
cd /d C:\inetpub\logs\LogFiles

REM for test
C:\inetpub\logs\LogFiles>forfiles /M *.log /S /D -09/11/2015 /C "cmd /c echo @path"
            
REM fo real                                                               
C:\inetpub\logs\LogFiles>forfiles /M *.log /S /D -09/11/2015 /C "cmd /c del @path"