Enhanced "safety nets" to ensure that if the custom image fails to load, the system defaults back to the original logo rather than hanging on a black screen.
Conclusion HackBGRT provides a practical, non‑firmware approach to customize the Windows UEFI boot logo by inserting an EFI loader that draws a user-supplied image. It is powerful for personalization but carries real risks around TPM/BitLocker, UEFI boot entries, and potential incompatibilities with Windows updates and firmware behaviors; it is recommended only for knowledgeable users who prepare backups and recovery options.
Before diving into the functionality, it's helpful to understand the technical landscape it operates within:
HackBGRT is an open-source Boot Graphics Resource Table (BGRT) editor specifically designed for UEFI-based Windows systems. In simpler terms, it is a tool that swaps the default boot logo for any image you choose.
is a specialized, open-source UEFI utility designed to change the factory boot logo on Windows operating systems. When a modern computer starts up, the Unified Extensible Firmware Interface (UEFI) reads a hardware table called the Boot Graphics Resource Table (BGRT) . This table dictates the vendor logo (such as Dell, Lenovo, HP, or ASUS) displayed right before Windows loads. Because this logo is embedded directly inside your motherboard's firmware, permanently replacing it is highly difficult and carries the risk of bricking your motherboard.
: Generally, Secure Boot must be disabled for HackBGRT to function, as the custom bootloader is not typically signed by Microsoft.
[ Motherboard Firmware ] ──> [ HackBGRT Bootloader ] ──> [ Overwrites Memory with Custom Image ] ──> [ Windows Boot Manager ] ──> [ OS Lock Screen ]
Hackbgrt-1.5.1 offers the safest balance: it doesn’t flash your BIOS, works across all major OSes, and respects your display’s native resolution.
