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Boot order selection menu on a Lenovo ThinkPad T470 with UEFI The UEFI implementation is usually stored on a NOR -based flash memory [ 1 ] [ 2 ] [ 3 ] located on the mainboard . Various I/O protocols can be used, SPI being the most common.
UEFI Forum, Inc. is an alliance between technology companies to coordinate the development of the UEFI specifications. The board of directors includes representatives from twelve promoter companies: AMD, American Megatrends, ARM, Apple, Dell, Hewlett Packard Enterprise, HP Inc., Insyde Software, Intel, Lenovo, Microsoft, and Phoenix Technologies.
It loads and executes the first boot software it finds, giving it control of the PC. [28] The BIOS uses the boot devices set in Nonvolatile BIOS memory , or, in the earliest PCs, DIP switches. The BIOS checks each device in order to see if it is bootable by attempting to load the first sector (boot sector). If the sector cannot be read, the ...
An external USB recovery drive is essential in case the data on your hard disk has been compromised up to the point where the system can no longer boot from the hard drive. Reportedly the key combination to have the Lenovo Yoga 11 UEFI firmware boot an external USB drive is "Volume Up" plus the "Windows Key" directly below the screen. [8]
Bootloader unlocking is the process of disabling the bootloader security that makes secure boot possible. It can make advanced customizations possible, such as installing custom firmware. On smartphones, this can be a custom Android distribution or another mobile operating system. Some bootloaders are not locked at all and some are locked, but ...
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The Lenovo ThinkVantage Technologies that can also run on some other platforms are System Migration Assistant to transfer a user's personal data and environment between PC systems. Rescue and Recovery to deploy updates, recover from crashes, and provide remote access if the system will not boot or function while booted. Legacy ThinkVantage software
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