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Valid data length (VDL): through the use of two distinct lengths fields – one for "allocated space" and the other for "valid data" – exFAT can preallocate a file without leaking data that was previously on-disk. Cluster size up to 32 MB. [15] Metadata integrity with checksums. [clarification needed] Template-based metadata structures.
exFAT is a file system introduced with Windows Embedded CE 6.0 in November 2006 and brought to the Windows NT family with Vista Service Pack 1 and Windows XP Service Pack 3 (or separate installation of Windows XP Update KB955704). It is loosely based on the File Allocation Table architecture, but incompatible, proprietary and protected by patents.
A basic data partition can be formatted with any file system, although most commonly BDPs are formatted with the NTFS, exFAT, or FAT32 file systems. To programmatically determine which file system a BDP contains, Microsoft specifies that one should inspect the BIOS Parameter Block that is contained in the BDP's Volume Boot Record .
exFAT is not backward compatible with FAT file systems such as FAT12, FAT16 or FAT32. The file system is supported with newer Windows systems, such as Windows XP, Windows Server 2003, Windows Vista, Windows 2008, Windows 7, Windows 8, Windows 8.1, Windows 10 and Windows 11. exFAT is supported in macOS starting with version 10.6.5 (Snow Leopard ...
Install Windows 11 on exFAT partition. Easy guide: If you want to use exFAT as the Windows system volume, you need to use NTFS to complete the system installation first, then restart and enter Windows PE to open CMD.exe and execute the following command to capture the .WIM image file:
The version of BitLocker included in Windows 7 and Windows Server 2008 Release 2 adds the ability to encrypt removable drives. On Windows XP or Windows Vista, read-only access to these drives can be achieved through a program called BitLocker To Go Reader, if FAT16, FAT32 or exFAT filesystems are used. [15]
Oplocks can be used to transparently access files in the background. A network client may avoid writing information into a file on a remote server if no other process is accessing the data, or it may buffer read-ahead data if no other process is writing data. Windows supports four different types of oplocks:
FatFs is a lightweight software library for microcontrollers and embedded systems that implements FAT/exFAT file system support. [1] Written on pure ANSI C, FatFs is platform-independent and easy to port on many hardware platforms such as 8051, PIC, AVR, ARM, Z80.