try SwissKnife for a free format and partition tool free from here click here
there are few products which can reverse from ntfs to fat32, the main one was Partition magic version 8 which is now owned by Symantec, I have not tried there version which i believe is a mix of both products norton ghost and Partition magic. Partition Magic also could create and change partition sizes without any loss of data which was always a main criteria for my uses.
To convert your drives to NTFS: Right click on 'my computer' and select 'manage' From the computer management window, expand storage and select 'disk management.' Using the 'file system' column of the upper pane of this window, you can easily check what file system each of your logical drives is using. Make a note of this information. Now open a command prompt window by going to 'start\run' and typing 'cmd' To convert a disk to NTFS, type 'convert (drive letter): /fs:ntfs' So for example, if you were going to convert your C: drive, you would type 'Convert c: /fs:ntfs' at the prompt.
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