For ASUS Laptop owners (Zenbook, ROG Strix G series, TUF Gaming laptops), the process is even stricter. Laptop OEMs lock the BIOS with a signature.

It often holds various image resolutions (e.g., 1920x1080, 2560x1440, 3840x2160) to match different monitor aspect ratios.

Locate your custom BMP file on the USB drive. Depending on your firmware version, the utility will allow you to patch the logo directly into the active BIOS ROM. Method 3: UEFI Tool and ChangeLogo (Advanced Users Only)

Always run a virus scan on any .zip file downloaded from third-party sites before extracting it. How to Apply Your ASUS OEM Logo in Windows

Replace the existing splash screen GUID section with your newly formatted BMP file.

Keep it small—ideally under 200 KB to ensure it fits within the BIOS storage space. 2. Recommended Tools for ASUS Users