HackBGRT version 1.5.1 is an open-source UEFI application designed to replace the default Windows startup logo by modifying the Boot Graphics Resource Table (BGRT). As a legacy tool, it often requires Secure Boot to be disabled and involves modifying the EFI System Partition to inject custom BMP images. More details are available in the HackBGRT GitHub documentation HackBGRT - Windows boot logo changer for UEFI systems
Here’s the core feature it provides:
If you want maximum security:
To understand why HackBGRT151 is special, you first need to understand the boot process:
Windows stores its boot logo as a compressed .bmp file inside a firmware table called the BGRT (Boot Graphics Resource Table) . By default, this table is read-only and signed by Microsoft. hackbgrt151
HackBGRT151 works by:
The “151” patch specifically fixes a race condition that caused black screens on systems with Intel Iris Xe graphics and AMD Ryzen 5000-series APUs. HackBGRT version 1
HackBGRT151 does not support GIFs or video. The UEFI boot environment only displays a static bitmap. However, some users create multi-layered BMPs with text like "Loading..." to mimic animation.