v2.9.0 (2025-11-17)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)
• wimboot.arm64 (for AArch64 UEFI systems)

Source code

• wimboot-2.9.0.zip
• wimboot-2.9.0.tar.gz

Changes

• Extract the boot.stl file automatically from the .wim image, to allow Windows 11 24H2 and newer to boot (debugged with 2Pint Software).

• Add support for automatically selecting bootmgfw_EX.efi as the next-stage bootloader on systems that trust the "Windows UEFI CA 2023" certificate.

• Update tests to use KVM within GitHub Actions where possible.

• Drop Windows 7 UEFI test, since upstream OVMF no longer provides the necessary VbeShim support.

• Add support for enabling UEFI Secure Boot during tests.

• Add Windows 11 tests (including a test with Secure Boot enabled).

v2.8.0 (2024-05-02)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)
• wimboot.arm64 (for AArch64 UEFI systems)

Source code

• wimboot-2.8.0.zip
• wimboot-2.8.0.tar.gz

Changes

• Add support for building as an AArch64 (ARM64) binary (sponsored by 2Pint Software).

• Fix forcing of text mode output when multiple displays are present.

• Add support for building with the clang compiler.

• Replace efireloc with iPXE's elf2efi tool for converting ELF binaries to PE format.

• Update to latest EDK2 headers.

v2.7.6 (2023-08-16)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)

Source code

• wimboot-2.7.6.zip
• wimboot-2.7.6.tar.gz

Changes

• Use separate .text and .data sections for W^X compatibility.

v2.7.5 (2023-01-25)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)

Source code

• wimboot-2.7.5.zip
• wimboot-2.7.5.tar.gz

Changes

• Support images compressed using the XPRESS compression scheme.

• Fix building with GCC 12

• Fix use of index=N when no injected files are present.

v2.7.4 (2022-01-20)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)

Source code

• wimboot-2.7.4.zip
• wimboot-2.7.4.tar.gz

Changes

• Add Secure Boot Advanced Targeting (SBAT) metadata.

v2.7.3 (2021-04-30)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)

Source code

• wimboot-2.7.3.zip
• wimboot-2.7.3.tar.gz

Changes

• Fix extraction of embedded bootmgr.exe from Windows 10 versions of bootmgr.

v2.7.2 (2021-02-22)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)

Source code

• wimboot-2.7.2.zip
• wimboot-2.7.2.tar.gz

Changes

• Fix BIOS booting of 32-bit versions of Windows 8 and above with more than 4GB of RAM.

• Ignore subdirectories when booting from a USB key (or other real filesystem), thereby avoiding potential filename collisions.

• Avoid potential infinite loops when retrieving the BIOS memory map.

v2.7.1 (2021-02-11)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)

Source code

• wimboot-2.7.1.zip
• wimboot-2.7.1.tar.gz

Changes

• Extract BCD, boot.sdi, and standard boot font files automatically from the .wim image.

• Use paging and Physical Address Extensions (PAE) to place the initrd above 4GB if possible, thereby allowing larger .wim images to be used on BIOS systems (sponsored by Digital Intelligence).

• Enable stack protection for both BIOS and UEFI builds.

• Tidy up debug output that typically disrupts the loading screen progress bar.

• Add quiet command-line option to inhibit all debug output (sponsored by 2Pint Software).

• Create fully automated tests of an HTTP boot via iPXE and wimboot into multiple versions of Windows.

• Migrate from Travis CI to GitHub actions.

v2.6.0 (2017-05-10)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)

Source code

• wimboot-2.6.0.zip
• wimboot-2.6.0.tar.gz

Changes

• Dynamically patch the .wim image to allow files to be injected in \Windows\System32, allowing for fine-grained control of the boot process (sponsored by 2Pint Software).

• Use Coverity Scan for ongoing static analysis.

v2.5.2 (2016-02-09)

Downloads

Binaries

• wimboot (for BIOS and 64-bit UEFI systems)
• wimboot.i386 (for BIOS and 32-bit UEFI systems)

Source code

• wimboot-2.5.2.zip
• wimboot-2.5.2.tar.gz

Changes

• Validate signed binaries to ensure that no malicious code was injected in the UEFI Secure Boot signing process.

• Fix identification of terminating character in strtoul().