For "stubborn" drives or those with existing partitions, the DiskPart utility is highly effective. Open as an administrator. Type diskpart and press Enter .
Type clean to wipe the drive (Caution: this erases everything). Type create partition primary . Type format fs=fat32 quick and press . Type assign to give it a drive letter and then exit . Method 4: Third-Party Tools (Easiest for Large Drives)
“The volume is too big for FAT32.”