After reboot, you should see your custom background and colors immediately after the UEFI POST screen. If you have multiple OS entries, they will appear with your custom icons.
Build 285 includes a resolution override feature. If your boot menu appears stretched or off-center, you can manually set a resolution (e.g., 1920x1080, 2560x1440) to match your monitor’s native aspect ratio. gfx boot customizer 1.0.0.6 285
GFX Boot Customizer can replace the standard dark blue or black boot menu background with any custom image. Supported formats include .bmp, .png, and .jpg. It automatically resizes and converts the image to the required .bmp format with specific color depths (32-bit RGBA) for UEFI rendering. After reboot, you should see your custom background
Yes, when obtained from verifiable sources. The tool does not contain spyware or crypto miners. However, because it patches system DLLs, Windows Defender may flag it as HackTool:Win32/Keygen. This is a false positive common to any software that modifies protected system files. If your boot menu appears stretched or off-center,
For power users, GFX Boot Customizer 1.0.0.6 285 can be integrated into larger workflows:
Modifying bootres.dll technically violates the Windows EULA for non-developer systems. However, Microsoft has never enforced this for personal, non-commercial use. For corporate environments, avoid using this tool.
If you encounter issues: