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Only boot applications, which are launched by the Boot Manager, have access to the boot libraries. The Boot Manager first captures any reserved hardware button combinations that are pressed by the user. 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. When the device resets abnormally, the previous OS session’s memory is preserved across the reset.
When this happens, the offline crash dump application will save that memory and turn it into an offline crash dump file, which can be transferred off the device and analyzed. If the device did not reset abnormally in the previous OS session, the offline crash dump application exits immediately. In all OS images, the Boot Manager next runs mobilestartup. This application runs several boot libraries, some of which are only run on first boot for example, to provision the secure boot policy or only in non-retail images for example, to enter USB mass storage mode.
The following libraries are always run:. First, mobilestartup. This library allows the user to charge their device while the device is in the boot environment or is perceived as being turned off. This library is run first to ensure that the device has enough power to fully boot.
For more information about scenarios involving the battery charging application, see Battery charging in the boot environment. Next, mobilestartup. These libraries determine whether the device should boot to flashing or device reset mode, or if the device should continue to the Update OS or Main OS.
If mobilestartup. Tarkista seuraavat seikat tietokoneessa, johon haluat asentaa Windows n: tai bittinen suoritin. Windowsin kieli.
Windowsin tuoteversio. Microsoft Office -tuotteet. Kun tiedosto on ladattu, siirry tiedoston tallennussijaintiin tai valitse Avaa tallentava DVD-asema ja kopioi tiedosto DVD-levylle seuraamalla ohjeita. Valitse Asenna Windows. After the firmware update package is on the end-user’s system, Windows will use the UEFI UpdateCapsule function to hand-off the device firmware payload to the platform firmware for processing. This process is identical to how Windows hands off system firmware update payload, and is discussed below.
It’s recommended that device firmware is updated using a discrete firmware update driver package. However, device firmware may also be updated with system firmware as part of a single firmware update driver package. UEFI should not be used to update peripheral devices. UEFI requires devices to be present during reboot to apply a firmware update which cannot be guaranteed with external, removable peripheral devices. This device firmware can be updated by the device driver during the normal Windows OS runtime.
Updating device firmware using normal Windows OS drivers isn’t covered by this paper. In order for a system to be compatible with the Windows firmware updating mechanism, it must meet the following requirements:.
UpdateCapsule is used to pass the firmware update payload between Windows and the platform firmware. System firmware, and some classes of device firmware, must be updatable using this process. Firmware code recognizes a firmware update payload passed to UpdateCapsule and initiates the update process. The implementation is owned by the partner. The Firmware Resource allows Windows to surface a device instance with a Hardware ID, which will be used to target the system or device firmware update to appropriate systems and devices.
It also describes the current firmware version and provides status for previous updates.
Download Windows 10 Disc Image (ISO File).Introduction
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Create Windows 10 bootable USB from ISO with UEFI support.Overview of the UEFI firmware update platform
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Some information in this section may apply only to Windows 10 Mobile and certain processor architectures.
A device running Windows 10 has several requirements for booting into the OS. After the device’s firmware initializes all the hardware, the device needs to ensure that there is enough power to boot. 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.
To accommodate each of these scenarios, the Windows 10 boot process uses the following components:. 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.
These applications can utilize UEFI drivers and services. This OS is used specifically for installing updates. Microsoft provides a UEFI flashing application which can be used in non-manufacturing scenarios.
The SoC firmware boot loaders initialize the minimal set of hardware required for the device to run. 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 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.
Emergency flashing requires tools specific to the SoC. For more information, contact the SoC vendor. Inside the boot environment, individual boot applications started by the Boot Manager provide functionality for all customer-facing scenarios before the device boots.
All components inside the boot environment are provided by Microsoft and cannot be modified, replaced, or omitted by OEMs. 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. After 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 Boot Manager launches boot applications sequentially, and each application exits back to the Boot Manager after finishing. Boot libraries are libraries of functions that extend upon existing UEFI functionality, and are designed to be used within the boot environment.
Only boot applications, which are launched by the Boot Manager, have access to the boot libraries. The Boot Manager first captures any reserved hardware button combinations that are pressed by the user.
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. When the device resets abnormally, the previous OS session’s memory is preserved across the reset. When this happens, the offline crash dump application will save that memory and turn it into an offline crash dump file, which can be transferred off the device and analyzed.
If the device did not reset abnormally in the previous OS session, the offline crash dump application exits immediately. In all OS images, the Boot Manager next runs mobilestartup. This application runs several boot libraries, some of which are only run on first boot for example, to provision the secure boot policy or only in non-retail images for example, to enter USB mass storage mode. The following libraries are always run:.
First, mobilestartup. This library allows the user to charge their device while the device is in the boot environment or is perceived as being turned off. This library is run first to ensure that the device has enough power to fully boot. For more information about scenarios involving the battery charging application, see Battery charging in the boot environment.
Next, mobilestartup. These libraries determine whether the device should boot to flashing or device reset mode, or if the device should continue to the Update OS or Main OS. If mobilestartup. Battery charging in the boot environment. Architecture of the UEFI battery charging application. Skip to main content. This browser is no longer supported. Table of contents Exit focus mode.
Table of contents. Note Some information in this section may apply only to Windows 10 Mobile and certain processor architectures. Important All components inside the boot environment are provided by Microsoft and cannot be modified, replaced, or omitted by OEMs. Submit and view feedback for This product This page. View all page feedback. Additional resources In this article.