# Metabolix/HackBGRT

Windows boot logo changer for UEFI systems

Repository: https://github.com/Metabolix/HackBGRT
Canonical: https://ross.abutalabs.com/products/hackbgrt
Language: C#
License: MIT
License Family: permissive
Topics: uefi, boot-logo-changer, boot
Last push: 2026-04-02T20:43:18+00:00

## Health v2 (maintenance only)
Score: 70/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 75, release rhythm 45, longevity 100
- inputs: {"age_days": 3766, "days_push": 153, "days_rel": 153, "gap_med": 354, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2931, forks 284 (observed 2026-08-28T04:07:30.640863+00:00)

## What it is
HackBGRT is a UEFI application that changes the Windows boot logo by overwriting the Boot Graphics Resource Table (BGRT) during boot. It ships with a Windows installer and uses the shim boot loader to work alongside Secure Boot.

## Use cases
- change the Windows boot logo on a UEFI system
- replace the vendor logo stored in the UEFI BGRT
- customize the boot splash image on Windows
- remove the manufacturer logo shown at startup

## When to choose
- you want a custom boot logo on a UEFI-based Windows machine
- you are comfortable with Secure Boot shim enrollment and TPM side effects
- you accept the risk of a potentially unbootable system and will make a rescue disk first

## When to avoid
- you rely on BitLocker, anti-cheat, or Windows PIN via TPM without wanting to reconfigure them
- you cannot tolerate any risk of an unbootable system
- you need the vendor logo hidden instantly with no original logo flash
- you are on a legacy BIOS system without UEFI

## Facets
- artifact type: application
- maturity: active
- function: security
- domain: operating-systems, developer-tools
- platform: windows
- tags: uefi, boot-logo, bgrt, bootloader, customization

## Member repositories
- Metabolix/HackBGRT (main) score 70

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:30.640863+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:33:24.190643+00:00, confidence not recorded.
  - readme: https://github.com/Metabolix/HackBGRT (fetched 2026-08-28T04:07:30.640863+00:00, sha 0526031f9bb2)
- Data as of 2026-08-30T08:39:29.467469+00:00.