If you want the subject operating systems to use a custom bitmap instead of their standard boot splash screen:
1. Design a Boot.BMP file that is 640 pixels wide by 480 pixels high and 256 bit color depth (16 colors) and save the file in the Windows (%SystemRoot%) folder.
2. Open a CMD.EXE window.
3. Type attrib -r -s -h c:\boot.ini and press Enter.
4. Type notepad c:\boot.ini and press Enter.
5. Add the following switches to the end of each desired \[operating systems\] line:
/bootlogo /noguiboot
so one might look like:
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Microsoft Windows XP Professional" /fastdetect /execute /bootlogo /noguiboot6. Save the C:\boot.ini and close Notepad.
7. Type attrib +r +s +h c:\boot.ini and press Enter.
The next time you start Windows, your splash screen will be used.
NOTE: The /noguiboot switch disables the bitmap that displays the progress bar for Windows startup.