Convert a fat32 partition into ntfs

Windows comes with a utility called "convert" with which you can convert a fat32 partition into a ntfs file system.

• open a terminal (command prompt) from "Run"->"cmd"
  
• let's say, drive D is in fat32 format and you want to convert it. Use "vol d:" to check the volume name.
  
• Use "convert d: /fs:ntfs" to convert. You will be asked for a volume name: you can either use the old name or pick a new name.
  
• Wait for the conversion to be completed.
  
• Although it's usually flawless (without losing any files) for this procedure, you are advised to back up your data in that drive before the conversion for secure purposes.