root:# mount -t ntfs-3g /dev/sda1 /mnt/win
Failed to mount '/dev/sda1': Operation not supported
Mount is denied because NTFS is unclean. Choose one of these actions:
   Boot Windows and shutdown it cleanly, or if you have a removable
   device then click the 'Safely Remove Hardware' icon in the Windows
   taskbar notification area before disconnecting it.
Or
   Run 'ntfsfix' on Linux unless you have Vista, then mount NTFS with
   the 'force' option read-write, or with the 'ro' option read-only.
Or
   Mount the NTFS volume with the 'ro' option in read-only mode.