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
: While the core requires a 24-bit BMP file, the setup tool can automatically convert other formats (PNG, JPG) during installation. hackbgrt151
Always back up your original boot logo files (HackBGRT151 does this automatically in C:\Windows\Boot\EFI\backup ). And share your custom designs with the online community; inspiration is part of the fun. HackBGRT version 1
A: The BGRT specification does not support transparency. The background will always be black. You use Secure Boot (unless you’re willing to
: HackBGRT only works on UEFI-based systems, not legacy BIOS.
