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Formerly, on disks formatted using the master boot record (MBR) partition layout, certain software components used hidden sectors of the disk for data storage purposes. For example, the Logical Disk Manager (LDM), on dynamic disks, stores metadata in a 1 MB area at the end of the disk which is not allocated to any partition.
This is analogous to the conversion from partition types 0x01, 0x04, 0x06, 0x07, 0x0B, 0x0C, and 0x0E to partition type 0x42 on MBR partitioned disks. Linux used the same partition type GUID for basic data partition as Windows prior to introduction of a Linux specific Data Partition GUID 0FC63DAF-8483-4772-8E79-3D69D8477DE4 .
The partition type (or partition ID) in a partition's entry in the partition table inside a master boot record (MBR) is a byte value intended to specify the file system the partition contains or to flag special access methods used to access these partitions (e.g. special CHS mappings, LBA access, logical mapped geometries, special driver access, hidden partitions, secured or encrypted file ...
The Logical Disk Manager (LDM) is an implementation of a logical volume manager for Microsoft Windows NT, developed by Microsoft and Veritas Software.It was introduced with the Windows 2000 operating system, and is supported in Windows XP, Windows Server 2003, Windows Vista, Windows 7, Windows 8, Windows 10 and Windows 11.
Windows Server 2008 R2: 2009-10-22 IA-64 Yes Yes MBR takes precedence in hybrid configuration. Windows 8 Windows Server 2012: 2012-08-01 x64 Yes Requires UEFI [37] MBR takes precedence in hybrid configuration. Windows 8.1: 2013-08-27 x64 Yes Requires UEFI [38] MBR takes precedence in hybrid configuration. Windows 10: 2015-07-29 x64 Yes Requires ...
Under Windows Vista and Windows 7, the Recovery Environment can be used to write new MBR code using the BOOTREC /FIXMBR command. Some third-party utilities may also be used for directly editing the contents of partition tables (without requiring any knowledge of hexadecimal or disk/sector editors), such as MBRWizard .
only on Windows [109] No No yes with multiple keyfiles Yes Yes No Windows on both MBR and UEFI GPT drives; dynamic drives discouraged Yes CyberSafe Top Secret Yes No No No Yes Yes Yes No Only Windows MBR volumes; no UEFI GPT drives, and dynamic drives discouraged Yes Name Hidden containers Pre-boot authentication Single sign-on Custom ...
Note: The column MBR (Master Boot Record) refers to whether or not the boot loader can be stored in the first sector of a mass storage device. The column VBR (Volume Boot Record) refers to the ability of the boot loader to be stored in the first sector of any partition on a mass storage device.