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  2. Device configuration overlay - Wikipedia

    en.wikipedia.org/wiki/Device_configuration_overlay

    Device configuration overlay (DCO) is a hidden area on many of today's hard disk drives (HDDs). Usually when information is stored in either the DCO or host protected area (HPA), it is not accessible by the BIOS (or UEFI), OS, or the user. However, certain tools can be used to modify the HPA or DCO.

  3. Microsoft basic data partition - Wikipedia

    en.wikipedia.org/wiki/Microsoft_basic_data_partition

    The operating system may not automatically assign a drive letter to the volume. In Microsoft operating systems , when using basic disk partitioned with GUID Partition Table (GPT) layout, a basic data partition ( BDP ) is any partition identified with Globally Unique Identifier (GUID) of EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 .

  4. Write protection - Wikipedia

    en.wikipedia.org/wiki/Write_protection

    Write blocking, a subset of write protection, is a technique used in computer forensics in order to maintain the integrity of data storage devices. By preventing all write operations to the device, e.g. a hard drive , it can be ensured that the device remains unaltered by data recovery methods.

  5. diskpart - Wikipedia

    en.wikipedia.org/wiki/Diskpart

    In computing, diskpart is a command-line disk partitioning utility included in Windows 2000 and later Microsoft operating systems, replacing its predecessor, fdisk. [ 1 ] [ 2 ] The command is also available in ReactOS .

  6. USB hardware - Wikipedia

    en.wikipedia.org/wiki/USB_hardware

    Adapters and cables with a USB-C receptacle are not allowed. [31] Full-featured USB-C 3.1 cables contain a full set of wires and are "electronically marked" : they contain a "eMarker" chip that responds to the USB Power Delivery Discover Identity command, a kind of vendor-defined message (VDM) sent over the configuration data channel (CC ...

  7. Host protected area - Wikipedia

    en.wikipedia.org/wiki/Host_protected_area

    The host protected area (HPA) is an area of a hard drive or solid-state drive that is not normally visible to an operating system. It was first introduced in the ATA-4 standard CXV (T13) in 2001. [ 1 ]

  8. Partition type - Wikipedia

    en.wikipedia.org/wiki/Partition_type

    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 ...

  9. Drive letter assignment - Wikipedia

    en.wikipedia.org/wiki/Drive_letter_assignment

    A full file reference (pathname in today's parlance) consists of a filename, a filetype, and a disk letter called a filemode (e.g. A or B). Minidisks can correspond to physical disk drives, but more typically refer to logical drives, which are mapped automatically onto shared devices by the operating system as sets of virtual cylinders.