Windows 10 High Quality | Bootloader For
// Open Windows Boot Manager file Status = Root->Open(Root, &File, L"\\EFI\\Microsoft\\Boot\\bootmgfw.efi", EFI_FILE_MODE_READ, 0); if (EFI_ERROR(Status)) Print(L"Error: bootmgfw.efi not found\n"); return Status;
Instead, Windows 10 uses the , which is part of the UEFI (Unified Extensible Firmware Interface) architecture.
The Windows Boot Manager is notoriously aggressive when it comes to dual-booting. bootloader for windows 10
The "bootloader" interface is only seen briefly during startup or when multiple operating systems are installed.
: The computer performs a Power-On Self-Test (POST) to check hardware health. It then looks for a bootable device (like your hard drive). // Open Windows Boot Manager file Status =
EFI_STATUS Status; EFI_LOADED_IMAGE_PROTOCOL *LoadedImage; EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume; EFI_FILE_PROTOCOL *Root, *File; EFI_DEVICE_PATH_PROTOCOL *FilePath; EFI_HANDLE BootMgrHandle;
The Windows 10 Boot Manager is a
print: lodsb or al, al jz done mov ah, 0x0e int 0x10 jmp print done: ret
// Bootloader.c #include <Uefi.h> #include <Library/UefiLib.h> #include <Library/UefiBootServicesTableLib.h> #include <Protocol/LoadedImage.h> #include <Protocol/SimpleFileSystem.h> : The computer performs a Power-On Self-Test (POST)
: The kernel takes over, initializes the rest of the drivers, and eventually brings you to the login screen. Key Features & Security
// Open simple file system on the same device (ESP) Status = gBS->HandleProtocol(LoadedImage->DeviceHandle, &gEfiSimpleFileSystemProtocolGuid, (VOID**)&Volume); if (EFI_ERROR(Status)) return Status;