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A PBA environment serves as an extension of the BIOS, UEFI or boot firmware and guarantees a secure, tamper-proof environment external to the operating system as a trusted authentication layer. [2] The PBA prevents any operating system from loading until the user has confirmed he/she has the correct password to unlock the computer. [2]
When Secure Boot is enabled, it is initially placed in "setup" mode, which allows a public key known as the "platform key" (PK) to be written to the firmware. Once the key is written, Secure Boot enters "User" mode, where only UEFI drivers and OS boot loaders signed with the platform key can be loaded by the firmware.
Windows 8 supports a feature of the UEFI specification known as "Secure boot", which uses a public-key infrastructure to verify the integrity of the operating system and prevent unauthorized programs such as bootkits from infecting the device's boot process. [87] Some pre-built devices may be described as "certified" by Microsoft; these must ...
A high-level PXE overview. In computing, the Preboot eXecution Environment (PXE; often pronounced as / ˈ p ɪ k s iː / pixie, often called PXE Boot/pixie boot) specification describes a standardized client–server environment that boots a software assembly, retrieved from a network, on PXE-enabled clients.
Automatic Repair: Automatically finds and fixes boot errors in the Windows Vista Startup Process caused by issues such as corruption of the following components: Boot Configuration Data, disk and file system metadata, Master Boot Record, or Windows Registry, and issues caused by missing or damaged boot and system files, incompatible drivers, or ...
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Windows RT is a mobile operating system developed by Microsoft and released alongside Windows 8 on October 26, 2012. It is a version of Windows 8 or Windows 8.1 built for the 32-bit ARM architecture (ARMv7), [6] designed to take advantage of the architecture's power efficiency to allow for longer battery life, to use system-on-chip (SoC) designs to allow for thinner devices and to provide a ...