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Before Windows Vista, this data was contained in boot.ini. These menu entries can include: Options to boot Windows Vista and later by invoking winload.exe. Options to resume Windows Vista and later from hibernation by invoking winresume.exe. Options to boot a prior version of the Windows NT family by invoking its NTLDR. Options to load and to ...
In Windows NT, the booting process is initiated by NTLDR in versions before Vista and the Windows Boot Manager (BOOTMGR) in Vista and later. [4] The boot loader is responsible for accessing the file system on the boot drive, starting ntoskrnl.exe, and loading boot-time device drivers into memory.
Though NTLDR and boot.ini are no longer used to boot Windows Vista and later versions of Windows NT, they ship with the bootcfg utility regardless. This is to handle boot.ini in the case that a multi-boot configuration with previous versions of Windows exists and needs troubleshooting from within the later operating system.
Then the boot loader loads the OS kernel from the storage device. If there is no active partition, or the active partition's boot sector is invalid, the MBR may load a secondary boot loader which will select a partition (often via user input) and load its boot sector, which usually loads the corresponding operating system kernel.
GNU GRUB, a popular open source bootloader Windows Boot Manager. A bootloader, also spelled as boot loader [1] [2] or called bootstrap loader, is a computer program that is responsible for booting a computer and booting an operating system. If it also provides an interactive menu with multiple boot choices then it's often called a boot manager. [2]
NTLDR allows the user to choose which operating system to boot from at the menu. For NT and NT-based operating systems, it also allows the user to pass preconfigured options to the kernel. The menu options are stored in boot.ini, which itself is located in the root of the same disk as NTLDR. Though NTLDR can boot DOS and non-NT versions of ...
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All the above-mentioned projects, when they are able to boot/install more than one OS, work under a "Boot Manager - Boot Loader" paradigm. The initial NBP is a Boot Manager able to retrieve its own configuration and deploy a menu of booting options. The user selects a booting option and an OS dependent Boot Loader is downloaded and run in order ...