Windows cannot be upgraded because the hard disk partition is formatted with an unsupported version of the NTFS file system. ...

Windows cannot be upgraded because the hard disk partition is formatted with an unsupported version of the NTFS file system. You must restart the computer using the Windows installation disc, perform a custom install, reformat the hard disk partition, and then reinstall your existing files, settings and programs. Go to http://go.microsoft.com/fwlink/?LinkID=142337 to see how to install Windows and keep your files and settings.