One way to find out.
Open Command Prompt.
In the command window, type help convert and then press ENTER. Information about converting FAT volumes to NTFS is made available.
To convert, do as below. Make sure you want to before doing this.
In the command prompt window, type: convert drive letter: /fs:ntfs. As in convert D: /fs:ntfs would format drive D
Important : Once you convert a drive or partition to NTFS, you cannot simply convert it back to FAT or FAT32. You will need to reformat the drive or partition which will erase all data, including programs and personal files, on the partition.