With reference to the post mentioned today that describes how to convert FAT file system to NTFS; the following article will let you know the steps to convert NTFS to FAT system.
Steps to convert NTFS to FAT and FAT32 system:
1. The important point that I would like to mention here is that Windows can not convert NTFS file system to any other by default and without use of any software.
2. So you have to use Norton Partition Magic for this work.
3. Converting a partition from any file system to another can be easily done by Norton Partition Magic and without any data loss.
4. You can also try this free Partition Manager called EASEUS Partition Master 4.0.1 Home Edition that can do the same thing for you.