Ntboot7z: _verified_

Understanding NTBOOT7Z: The Essential Tool for Multi-Booting and System Recovery

ntboot7z wim=/sources/boot.wim index=1

title Boot Windows 10 ISO with NTBoot7z
ntboot7z iso=/boot/win10.iso
boot
  1. Boot Handoff: When the computer starts, a lightweight bootloader (often Grub4Dos or a specialized NT Loader) loads the ntboot7z driver.
  2. Memory Loading: The utility locates the compressed archive (e.g., WinPE.7z or Install.wim) and loads it into the system's RAM.
  3. Virtualization: It mounts this memory space as a virtual disk drive.
  4. OS Handover: Control is passed to the Windows kernel inside that virtual disk, and Windows boots as if it were running from a physical hard drive.

GRUB2 entry (/etc/grub.d/40_custom):

Boot WIM/VHD files: Directly load Windows Preinstallation Environments or virtual disks without manual BCD editing. ntboot7z

: This community has extensive threads on automating Windows setups and using 7z-compressed boot images to optimize deployment. Boot Land / TheOven title Boot Windows 10 ISO with NTBoot7z ntboot7z