One format is FAT, and the other is FAT32. What is the difference?

File allocation table (abbreviation: FAT) is a partially patented file system invented by Microsoft [1], which is used by MS-DOS and Microsoft windows with non-NT kernel.

FAT has a serious disadvantage: when files are deleted and new data are written in the same location, their fragments are usually scattered, which slows down the reading and writing speed. Disk defragmentation is a solution, but it must be reorganized frequently to keep the efficiency of FAT file system.

In order to solve the limitation of volume size in FAT 16 and let the real DOS mode handle this format without reducing the available conventional memory, Microsoft decided to implement a new generation of FAT, called FAT32, with 32-bit cluster number, of which 28 bits are currently used.

Windows 2000 and Windows XP can read and write the FAT32 file system of any size, but the formatters on these platforms can only create the FAT32 file system with a maximum of 32GB.

NTFS (New Technology File System) is a file system under Windows NT operating system environment and Windows NT advanced server network operating system environment.

NTFS can support partitions up to 2TB (called volumes if dynamic disks are used). FAT32 in Win 2000 supports partitions with a maximum size of 32GB.

In a word, NTFS is the best and most widely used format now. Secondly, the general U disk can use FAT32 format. Please note that compressed partitions cannot be converted to NTFS. In fact, compressing disk partitions to increase capacity in disguise is at the expense of system speed; And it will bring great trouble to future system maintenance, partition format conversion and operating system upgrade. Other applications recommend not to use the partition disk compression function of Windows unless the backup data is completely considered.

So let's use quick format as NTFS. Simply put, you just need to know that NTFS is better than FAT32 and better than FAT. You don't have to be too professional if you haven't studied this field.

When formatting, the NTFS format is selected for the large hard disk, and the U disk FAT32 will do.

Quick format just cleared the FAT table (file allocation table), making the system think that there are no files on the disk, and didn't really format all the hard disks. After quick format, hard disk data can be recovered by tools, which is also the reason why quick format is much faster. If quick format is not selected, the ordinary formatter will scan all tracks on the hard disk and erase all contents on the hard disk, which is irreversible. Ordinary formatting can detect bad tracks on the hard disk, which will be slower.

Generally speaking, you can choose the fast format, which is faster. If you suspect that the hard disk has a bad track, you can try ordinary formatting.