- #Realtek uefi undi driver 2.021 drivers
- #Realtek uefi undi driver 2.021 update
- #Realtek uefi undi driver 2.021 Offline
- #Realtek uefi undi driver 2.021 windows
#Realtek uefi undi driver 2.021 Offline
In non-retail OS images, the Boot Manager next runs an offline crash dump boot application which allows the device to capture a snapshot of physical memory from the previous OS session. The Boot Manager first captures any reserved hardware button combinations that are pressed by the user. Only boot applications, which are launched by the Boot Manager, have access to the boot libraries. The Boot Manager launches boot applications sequentially, and each application exits back to the Boot Manager after finishing.īoot libraries are libraries of functions that extend upon existing UEFI functionality, and are designed to be used within the boot environment. The following steps describe this process in more detail:Īfter the UEFI environment launches the Boot Manager, the Boot Manager initializes boot libraries, reads the boot configuration database to determine which boot applications to run and in which order to run them. The following diagram illustrates some of the key portions of the process that the Boot Manager follows after it is launched by the UEFI environment. Inside the boot environment, individual boot applications started by the Boot Manager provide functionality for all customer-facing scenarios before the device boots.Īll components inside the boot environment are provided by Microsoft and cannot be modified, replaced, or omitted by OEMs.īoot applications implement functionality for the following scenarios:Ĭapturing and saving offline crash dumps (developer builds only).
#Realtek uefi undi driver 2.021 windows
The Windows Boot Manager is a Microsoft-provided UEFI application that sets up the boot environment. For more information, see UEFI in Windows. The UEFI environment is a minimal boot OS upon which devices are booted and the Windows 10 OS runs. Windows 10 utilizes the Unified Extensible Firmware Interface (UEFI) to support the handoff of system control from the SoC firmware boot loader to the OS. For more information, contact the SoC vendor. Emergency flashing requires tools specific to the SoC.
#Realtek uefi undi driver 2.021 update
The SoC firmware boot loaders also contain an emergency flashing capability that allows devices to be flashed when the boot environment is not stable and Full Flash Update (FFU) image-based flashing using the Microsoft-provided flashing tool is not possible. After the SoC firmware boot loaders finish, the device is booted into the UEFI environment. The SoC firmware boot loaders are designed to finish as fast as possible, and nothing is drawn to the screen while they are running. The SoC firmware boot loaders initialize the minimal set of hardware required for the device to run. For more information, see Capture and apply Windows Full Flash Update (FFU) images. OEMs can also implement their own UEFI flashing application. Microsoft provides a UEFI flashing application which can be used in non-manufacturing scenarios. This OS is used specifically for installing updates.įull Flash Update (FFU) image flashing mode refers to a UEFI application that flashes an OS image to device storage. The update OS is a minimal OS environment provided by Microsoft. The following diagram illustrates this process at a high level.įollowing are additional details about some of the components in this diagram: The UEFI environment launches the Windows Boot Manager, which determines whether to boot to Full Flash Update (FFU) image flashing or device reset mode, to the update OS, or to the main OS.
#Realtek uefi undi driver 2.021 drivers
These applications can utilize UEFI drivers and services. The firmware boot loaders boot the UEFI environment and hands over control to UEFI applications written by the SoC vendor, Microsoft, and OEMs. The device is powered on and runs the SoC-specific firmware boot loaders, which initialize the hardware on the device and provide emergency flashing functionality. When a Windows 10 device is turned on, it goes through the following high-level process: This topic provides an overview of the boot process, and it describes the SoC firmware boot loaders, UEFI, and Windows Boot Manager in more detail. Windows Boot Manager provided by Microsoft. UEFI (Unified Extensible Firmware Interface) environment provided by the SoC vendor. To accommodate each of these scenarios, the Windows 10 boot process uses the following components:įirmware boot loaders provided by the System on Chip (SoC) vendor. Afterwards, the device needs to ensure that the device is booting into the appropriate OS depending on if the user wants to perform an update or a restore on the device, or if the user wants to boot the device into the main OS. After the device's firmware initializes all the hardware, the device needs to ensure that there is enough power to boot. Some information in this section may apply only to Windows 10 Mobile and certain processor architectures.Ī device running Windows 10 has several requirements for booting into the OS.
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