FAT32 is a file system (used for storing data on hard disks), which was developed and mainly used by Microsoft Windows. There are several reasons, why Microsoft replaced it with the newer and better NTFS by now: 1st: You can only have files 4 GB big, when using this file system. 2nd: A major drawback is that the FAT32 file system isn't able to handle file permissions and therefore allows everyone to read every file on the hard disk.

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