UEFI BIOS Editor — 2026-09-05 build.
Download: UefiBiosEditor.exe below (single file, win-x64; requires the
.NET 8 Desktop Runtime).
Highlights of this build:
- Moved to .NET 8; single-file distribution
- Interactive Setup browser (dynamic visibility, values joined to NVRAM variables)
- Flash Map: whole-ROM usage reverse-engineered from the image
- FFS editing: Replace (larger files rebuild the FV automatically), Insert, Remove,
Export Decompressed; saves self-verify - AMD support: PSP/BIOS firmware directories, microcode, Zlib PEI FVs
- Intel OSSE region parsing (BPDT / $CPD), in the firmware tree and Flash Map
- Compare ROMs / Compare Setup, global cross-tab search, Data Inspector
- Faster open on large images (lazy firmware/PCD trees)
Full changelog: https://iorlvskyo.blogspot.com/2016/06/uefi-bios-editor.html