is a third-party, open-source utility designed to change the boot logo on UEFI-based Windows systems by modifying the Boot Graphics Resource Table (BGRT)
. Below is a complete write-up of its functionality, installation, and critical safety considerations. Core Functionality
Unlike traditional methods that might try to patch system files, HackBGRT functions as a custom UEFI application
: It executes before the Windows bootloader, overwriting the vendor-defined logo (stored in the firmware's BGRT section) in memory with your custom image Non-Destructive
: It does not permanently modify your actual BIOS/UEFI firmware Image Requirements : The replacement image must be a 24-bit BMP Installation Process Preparation : Download the latest release from the official GitHub repository BIOS Configuration : You must disable Secure Boot
in your BIOS/UEFI settings, as HackBGRT's bootloader is unsigned and will be blocked otherwise Configuration : The tool will open a config.txt
file (to set parameters like image position) and a Paint window for splash.bmp (where you paste your custom logo)
: Follow the command prompt instructions to install. The tool typically replaces the default Windows bootloader ( bootmgfw.efi ) with itself and creates a backup of the original Critical Technical Constraints
Squished Aspect Ratio · Issue #31 · Metabolix/HackBGRT - GitHub
HackBGRT is an open-source UEFI boot logo changer primarily used for Windows systems. Version 1.5.1 is a specific release of this utility that allows users to replace the standard Windows boot logo with a custom image. Key Features
Custom Branding: Replaces the Windows flag or OEM logo with a user-defined image during boot.
UEFI Compatibility: Designed specifically for modern systems using UEFI firmware (Windows 8, 10, and 11).
High-Quality Image Support: Supports custom 24-bit BMP files for the "splash" image.
Positioning Control: Allows manual adjustments for image coordinates (x, y) via a configuration file to ensure the logo is centered or properly placed. Operational Requirements
To ensure high-quality results and system stability, the following conditions must be met:
Secure Boot: Must typically be disabled in the BIOS/UEFI settings for the tool to function.
File Format: The custom logo must be a 24-bit BMP file named splash.bmp.
Partition Access: The tool mounts the EFI system partition (often as drive A:) to place necessary files. Potential Risks & Limitations
⚠️ System Stability: Because HackBGRT modifies the EFI partition, improper use or accidental deletion of its files can make a computer unbootable.
Doesn't work on HP laptop · Issue #77 · Metabolix/HackBGRT - GitHub
HackBGRT is a niche but powerful tool for PC enthusiasts who want to replace the standard Windows startup logo with a personalized high-quality image. Core Features & Performance
Seamless Customization: It allows you to display a custom BMP or PNG image instead of the manufacturer or Windows logo during the boot sequence.
Lightweight Design: The tool is open-source and extremely small, making it a favorite for developers and organizations wanting a unique brand identity on startup.
UEFI Integration: Unlike older methods, it works directly with the Boot Graphics Resource Table (BGRT) section of the UEFI firmware. Quality & Reliability
Visual Fidelity: By using the HackBGRT GitHub releases, users can set image positions as fractions of their screen resolution, ensuring the custom logo looks sharp and centered.
Compatibility: It is widely used on Windows 10 and 11 systems but requires disabling Secure Boot in your BIOS settings to function. The Risks (Proceed with Caution)
Boot Failures: Because it modifies the boot sequence, some users have reported being unable to boot their systems after a misconfiguration.
Firmware Conflicts: On some devices, like Surface laptops, the original logo may still flicker for a second before the custom one appears.
Technical Knowledge Required: It is considered "dangerous" for beginners. Users must be comfortable editing configuration files and navigating BIOS menus. Final Verdict Completely free and open-source. Requires Secure Boot to be disabled. High degree of personalization. Risk of "bricking" the bootloader if done wrong. Fast and lightweight. Can be difficult to uninstall for some.
For a step-by-step installation guide, you can refer to community tutorials on YouTube or technical documentation on Microsoft Learn.
Incorrect logo shows for a second · Issue #35 · Metabolix/HackBGRT hackbgrt151 high quality
While "hackbgrt151 high quality" appears in some automated SEO-driven database lists, it is not a recognized standalone product or service
. However, the individual components refer to a popular method for customizing a computer's boot appearance. The Core Technology: HackBGRT
is a widely used open-source tool designed for Windows systems running on UEFI firmware. Its primary purpose is to allow users to change the default manufacturer logo (like Dell, HP, or Lenovo) that appears when a computer starts up. How it Works : It targets the Boot Graphics Resource Table (BGRT)
, a section of the UEFI firmware where the boot logo is stored. Instead of permanently flashing the BIOS—which is risky—HackBGRT acts as a "boot loader" that overwrites the logo in memory during the startup process. "High Quality" Customization
: To achieve a "high quality" look, users typically replace the default image with a 24-bit BMP file
. Using high-resolution images or custom brand logos can give a personal or professional feel to a custom PC build. Key Features and Risks HackBGRT - Windows boot logo changer for UEFI systems
HackBGRT 1.5.1: Achieving High-Quality Custom Boot Logos on Windows
Customising your PC is more than just changing wallpapers; for enthusiasts, it starts the moment you press the power button. HackBGRT 1.5.1 is a specific, widely-cited version of the open-source HackBGRT tool designed to replace the default Windows or OEM (vendor) boot logo with a high-quality custom image.
While newer versions like 2.5.1 exist, many users still seek out version 1.5.1 due to its perceived stability or specific compatibility with older UEFI systems. What is HackBGRT 1.5.1?
HackBGRT is a UEFI-based boot logo changer. Unlike old methods that tried to patch system files, HackBGRT functions as a custom UEFI application. It overwrites the Boot Graphics Resource Table (BGRT) in your system's memory during the boot process, allowing your custom image to appear instead of the standard Windows flag or manufacturer logo (like Dell, HP, or Lenovo). Requirements for High-Quality Results
To ensure your custom logo looks professional and "high quality," you must adhere to specific technical requirements during the creation process:
Squished Aspect Ratio · Issue #31 · Metabolix/HackBGRT - GitHub
On UEFI-based systems, Windows displays a vendor-defined logo stored in the Boot Graphics Resource Table (BGRT). Because this logo is often hard-coded into the firmware, it is difficult to change permanently. HackBGRT works by acting as a middleman: it overwrites the BGRT in memory during the boot sequence before Windows starts, allowing a custom image to appear instead. How to Achieve High-Quality Results
To ensure your custom boot logo looks professional and high-resolution, follow these guidelines:
Image Format: Use a 24-bit BMP file. While newer versions of the tool can convert other formats, version 1.5.1 specifically relies on the Microsoft Paint-compatible BMP format.
Resolution & Centering: For the best quality, match the image resolution to your screen's native aspect ratio. In the config.txt file, you can use x=auto y=auto to center the image automatically.
Avoid Stretching: If your image is smaller than the screen resolution, it will not be stretched, maintaining its sharpness but potentially appearing small against a black background. Essential Requirements & Risks
Customizing your boot logo involves modifying boot-level settings, which carries inherent risks:
Disable Secure Boot: For HackBGRT to function, you must disable Secure Boot in your BIOS/UEFI settings, as it will otherwise block the custom UEFI application.
Backup and Recovery: If misconfigured, HackBGRT can prevent your system from booting. Always have a Windows Recovery Drive or a rescue disk ready before installation.
Legacy vs. Modern Versions: While v1.5.1 is a known stable point, the latest releases on GitHub (such as v2.0.0+) include better image conversion, GIF support, and easier setup for modern Windows versions. AI responses may include mistakes. Learn more HackBGRT - Windows boot logo changer for UEFI systems
HackBGRT is a popular, open-source tool used to replace the default Windows boot logo with a custom image on systems using UEFI firmware. Review & Key Features
High Customization: It allows you to swap the standard Windows or manufacturer logo for any 24-bit BMP image.
System Requirements: It strictly requires a system running in UEFI mode with Secure Boot disabled to function.
Ease of Use: While powerful, it is considered an expert tool. Installation involves running a command-line setup that mounts your system's EFI partition.
Reversibility: The tool includes a simple removal option (typically by running the setup again and selecting 'R') to restore the original logo. Critical Considerations
Risk Level: Because it modifies the system's EFI partition, incorrect use can potentially make your computer unbootable. Always ensure you have a recovery plan or backup.
Technical Support: There is no official technical support for installation or usage; users are expected to rely on community documentation and bug reports.
Image Limitations: Custom images must be saved as 24-bit bitmap (BMP) files named splash.bmp. Larger resolutions or incorrect formats may cause the tool to fail or display the default logo instead.
For the most reliable version and official instructions, visit the HackBGRT GitHub repository. is a third-party, open-source utility designed to change
Do you need help checking if your system is in UEFI mode or finding a specific tutorial for your motherboard?
Squished Aspect Ratio · Issue #31 · Metabolix/HackBGRT - GitHub
Based on the text provided, the most likely complete content you are looking for refers to a specific software tool and its distribution:
"HackBGRT 1.5.1 (High Quality)"
Here are the details regarding this content:
Official Source: If you are looking to download the tool, the official and safest source is GitHub: https://github.com/ArsenieBoca/HackBGRT
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HackBGRT is a popular open-source utility designed to change the Windows boot logo on UEFI-based systems. Version 1.5.1 is a stable release of this tool that allows users to swap out the standard Windows flag or manufacturer logo (like HP or Dell) for a custom image during the startup process. Key Features of HackBGRT 1.5.1
UEFI Support: Specifically designed for modern UEFI systems using the Boot Graphics Resource Table (BGRT).
Image Customization: Users can specify high-quality images, including exact X/Y coordinates for positioning on the screen.
Randomization: It supports cycling through multiple boot images randomly if configured in the config.txt file.
Safe-ish Modification: It doesn't replace the actual Windows bootloader; instead, it installs itself alongside it to overwrite the logo in memory during boot. Step-by-Step: How to Use It
If you wish to revert to the default Windows logo:
uninstall.bat or running the installer again to select 'Uninstall').bcdedit /deletevalue default custom:16000085 (use with caution).⚠️ Warning: Modifying boot parameters carries a small risk. Always ensure you have a backup of important data and create a System Restore point before modifying system boot files. Use this tool at your own risk.
I’m unable to prepare a meaningful report on the phrase "hackbgrt151 high quality" because it doesn’t correspond to a known software tool, security vulnerability, academic concept, or established product.
Here’s what I can tell you based on the phrasing:
“hackbgrt” does not match any known CVE (Common Vulnerabilities and Exposures), malware family, or publicly documented hacking tool. It may be:
hackbgrt as part of a boot graphics-related tool in Linux — bgrt refers to the Boot Graphics Resource Table in ACPI, sometimes manipulated for custom boot logos).“151” could be a version number, port number, model number, or arbitrary identifier.
“high quality” is a subjective marketing or review term, not a technical specification.
To proceed, please clarify:
Once you provide more accurate details, I can help analyze risks, functionality, or create a proper report.
Ready to upgrade your boot screen? Follow this guide meticulously. Note that you will need to temporarily disable Secure Boot (you can re-enable it after).
OEM boot screens often use a limited color palette (RGB 565, or 16-bit). This causes color banding—visible gradients and blotches in what should be a smooth image. High-quality HackBGRT mods leverage 24-bit true color (RGB 888), eliminating banding for photographic or gradient-heavy logos.