However, bear in mind that this will mean slightly longer boot-up times. In fact, it's highly advisable to consider backing up your system first since there's the potential for data loss during this process. You can go ahead with converting your drive to GPT format.
Click the Volumes tab in the Properties screen. Next, look for the Partition style option under Disk Information. This will help restore your computer to its default BIOS settings. You can reset the CMOS settings by pressing this button and holding it down for a few seconds.
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Click Yes when prompted by User Account Control. Click Yes when prompted by Registry Editor. Click OK when prompted by the Registry Editor. Close all applications before proceeding. When you right-click on your new Context Menu, you will have to click Yes at the prompt, and then you are notified that Windows will shut down within a minute.
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After the firmware update package is on the end-user's system, Windows will use the UEFI UpdateCapsule function to hand-off the firmware payload to the platform firmware for processing.
Deploying the update as a driver package allows the firmware update process to align with many existing deployment and servicing tools, and ensures simple update package authoring for hardware vendors. Although the firmware update is delivered as a driver package, it does not mean that the update is written as an actual driver. The driver package will contain an INF file and a binary file containing the system or device firmware image. For the purposes of updating device firmware, the device firmware can be assigned to one of these two categories:.
This device firmware can be updated using a device driver package using the same mechanism as system firmware. A device firmware update is distributed as a firmware update package. 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.
There exists a single entry for system firmware updates. In this case, the function and firmware device nodes must have different hardware IDs in order to be targeted independently. There are a couple ways to create a second device node. Certain device types have the ability to expose a second device node on one physical device, such as USB. You can use this functionality to create a device node targetable by WU, and install a firmware update driver on it.
Many device types, however, don't allow a single physical device to enumerate more than one device node. In this case, use an extension INF that specifies the AddComponent directive to create a device node that can be targeted by Windows Update and install the firmware update driver on it. The following snippet from an INF file shows how you can do this:. When installed, this INF creates the following device hierarchy:. To update firmware for devices that use a Microsoft-supplied driver, you need to create a second device node, as shown above.
PnP resolves this location when it installs the device. The driver can then open this registry key to determine the location of the payload. To locate another device node, the firmware driver should walk the device tree relative to itself, not by enumerating all device nodes for a match. A user may have plugged in multiple instances of the device, and the firmware driver should only update the device with which it's associated.
Typically, the device node to be located is the parent or sibling of the device node on which the firmware driver is installed. For example, in the diagram above with two device nodes, the firmware update driver can look for a sibling device to find the function driver.
In the diagram immediately above, the firmware driver can look for the parent device to find the primary device with which it needs to communicate. The driver should be robust to multiple instances of the device being on the system, possibly with multiple different firmware versions.
For example, there may be one instance of the device that has been connected and updated several times; a brand new device may then be plugged in which is several firmware versions old. This means that state such as current version must be stored against the device, and not in a global location. If there's an existing method to update the firmware EXE or co-installer, for example , you can largely reuse the update code within a UMDF driver.