Open your desired graphic in an image editor (such as Photoshop or GIMP).
To get the best results, it helps to understand what HackBGRT does. When you start a UEFI-based computer, Windows displays a logo that’s stored in a part of your firmware called the . HackBGRT works by inserting itself into the boot process to temporarily overwrite that default logo with your chosen image.
Unlike traditional methods that might try to patch system files, HackBGRT functions as a custom UEFI application
Using allows for a significant aesthetic upgrade to any Windows system. By following best practices regarding image format, size, and transparent handling, you can achieve a high-quality boot experience that feels native to your computer. Need Help With Your Custom Boot? Are you looking to use a PNG or BMP for your logo? Do you know the native resolution of your monitor? How to Change The Boot Logo in Windows. hackbgrt151 high quality
When you power on a modern UEFI PC, the firmware displays a bitmap (BGRT) stored in a firmware table. HackBGRT injects a custom image after the firmware loads but before Windows takes over, effectively replacing the logo without modifying the actual BIOS/UEFI firmware (thus no brick risk).
Traditionally, Windows displays a vendor-defined logo (like HP, Dell, or Lenovo) stored in the Boot Graphics Resource Table (BGRT)
Even though BMP is safer, modern HackBGRT supports transparent PNGs, which look better than a solid square background. Open your desired graphic in an image editor
If your BIOS uses a black background, a black-background logo will appear seamless. Conclusion
HackBGRT is a popular, open-source designed specifically for Windows systems running in UEFI mode.
Squished Aspect Ratio · Issue #31 · Metabolix/HackBGRT - GitHub HackBGRT works by inserting itself into the boot
sudo update-grub
Rarely, a Windows cumulative update may re‑write the EFI boot entry, resetting the logo. Re‑run setup.exe to fix (preserves your image file).