The application relies on a properly configured, healthy EFI system partition to house its configuration and image files. Step-by-Step Installation and Image Configuration
, a standard UEFI feature that Windows uses to display a manufacturer or OS logo during boot. It is widely considered the "go-to" recommendation for users who want to personalize their boot experience on modern hardware. Key Features Custom Branding:
: Place your 24-bit BMP file named splash.bmp in the HackBGRT folder
: Secure Boot usually must be disabled for HackBGRT to function, as it modifies the boot process. hackbgrt151
HackBGRT is intended as a boot logo changer for UEFI-based Windows systems. Esp.cs - Metabolix/HackBGRT - GitHub
Only download from the official GitHub repository ( github.com/Metabolix/HackBGRT ). The “151” version is in the “releases” section as HackBGRT-1.5.1.zip . Avoid third-party mirror sites.
HackBGRT151 is a specific version of the popular open-source tool (Hack Boot Graphics Resource Table), designed to work seamlessly with Windows 10 and Windows 11 builds up to version 21H2 (Build 22000). The "151" suffix refers to a stability update and compatibility patch that addresses issues with newer UEFI firmware and Windows updates. The application relies on a properly configured, healthy
HackBGRT is a brilliant piece of open-source engineering that empowers users to take full control of a traditionally locked-down part of their PC: the UEFI boot screen. By intercepting the boot process at the perfect moment, this utility allows for safe, reversible, and highly customizable splash screen replacement.
Once you’ve mastered the basics, consider these advanced uses:
Now go ahead—hack that BGRT and make your boot screen your own. Key Features Custom Branding: : Place your 24-bit
: The tool is highly specialized and doesn't require heavy background processes; it simply replaces the boot logo during the startup sequence.
This usually occurs if you are not running the setup.exe as administrator or if your antivirus software is interfering. Disable your antivirus temporarily (including Windows Defender’s real-time protection) and ensure you right-click setup.exe and choose "Run as administrator".
| Issue | Possible Cause | Solution | |-------|----------------|----------| | | Corrupted BMP or wrong resolution | Boot from Windows USB → Command Prompt → Navigate to C:\HackBGRT → Run restore.bat | | Logo is tiny and centered | Using a low-res image on a high-res screen | Create an 800x600 BMP with a black border; the EFI will center it. | | Secure Boot violation error | Secure Boot re-enabled without enrolling the certificate | Reboot → Disable Secure Boot → Re-run HackBGRT151 and choose "Install Certificate" | | "Failed to find bootmgfw.efi" | Windows installed on a different drive or using MBR (Legacy BIOS) | Convert your disk to GPT and switch to UEFI mode. HackBGRT151 requires UEFI. | | Logo shows for a second, then disappears | Fast Boot is hiding the logo | In Windows Power Options, disable Fast Startup. |
Permanently rewriting this graphic inside the motherboard's flashed BIOS/UEFI firmware is incredibly difficult and highly risky. HackBGRT solves this problem by functioning as a . Instead of overwriting your actual motherboard firmware, it intercepts the boot process, temporarily replaces the image stored in the volatile BGRT memory pool, and then hands control back over to the Windows Boot Manager. Technical Prerequisites