When to Use FAT or FAT32

• If you're running more than one operating system on a single computer you will definitely need to format some of your volumes as FAT.
• Any programs or data that need to be accessed by more than one operating system on that computer should be stored on a FAT16 or possibly FAT32 volume.
• But keep in mind that you have no security for data on a FAT16 or FAT32 volume—any one with access to the computer can read, change, or even delete any file that is stored on a FAT16 or FAT32 partition.
• In many cases, this is even possible over a network. So do not store sensitive files on drives or partitions formatted with FAT file systems.
• 1. Close all open applications. This process may require a reboot, so be prepared.
  2. Click Start, click Run, and then type cmd, and press Enter.
  3. In the command windows, type:
  convert D: /FS:NTFS
  4. Press Enter.