Well, ntfs is the only way to get files more than 4 GB.. u can firstly delete the partition wich is in FAT32 by goin to
CONTROL panel > administrative tools > computer management > storage (look for this menu at the left hand side of the window) > disk management
and delete the FAT32 partition, after backing up all the data on it, once the partition is DELETED, create a new (logical drive) partition by right clicking on the FREE SPACE (yellow color) and setting up a new partiton with NTFS and wait for sumtime to let the PC format the partition with NTFS and u are done..

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Cheers n e-peace...