First, we need to create two BMP files in 800×600 and 1024×769 resolutions using 24-bit images. To accomplish this, use any image editor you like. To generate the boot file, i will use Vista Boot Logo Generator 1.2 Beta.

When you have your two image files, open Vista Boot Logo Generator and load the images. Then, choose File - Save Boot Screen File As and save the winload.exe.mui file the program generates.

You need to copy this file to Windows\System32\en-US. Remember to make a backup of this file and take into account that the en-US part can be different in other languages (it’s es-ES for spanish installations).

One last thing. Type msconfig in the Run box and choose the Boot tab. Just clear the checkbox called No GUI Boot.

That’s all. In order for Windows to use the 1024×768 image you need to have a decent graphics card.

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