Converting FAT32 to NTFS without formatting (server 2008) [duplicate]
Try this in the command line
convert X: /fs:ntfs
change "X:" to the letter of the drive you would like to convert.
To resize the partition, you will need a server class product. There is a server class version of Partition Magic, but it's expensive. If you must enlarge the C: partition, then I would suggest performing a FULL BACKUP first. Then, use GPartEd (free, linux-based partitioning software).
As stated by scoopdreams, the command CONVERT should work for converting your partition from FAT32 to NTFS (note: Convert CANNOT convert back to FAT32).