Even if your motherboard BIOS Setup doesn't support/include an option to turn off the annoying NumLock key upon (re)boot, you can still do this by hacking your Windows NT4/2000/XP/2003 Registry.
Start by copying & pasting the lines below into a blank Notepad window, then save this file as NLOCKOFF.REG and finally (double)-click on it from Windows Explorer or File Manager (FM = %windir%\WINFILE.EXE = NOT available in Win2000/XP/2003!) to turn OFF NumLock:
-----Begin cut & paste here-----
; All users:
; Current user only:
------End cut & paste here------
To turn NumLock back ON, replace the "InitialKeyboardIndicators" value of 0 with 2, save the file and run it.
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