Starting Windows XP with Number Lock ON is a pretty simple registry tweak. All you got to do is the following…
Click Start ==> Run and Type REGEDIT
Navigate to the following Registry tree
KEY_USERS/.DEFAULT/Control Panel/Keyboard
Change the value of the key InitialKeyboardIndicators to 2 (initially is it set to 0)
That’s it, When you reboot XP again, Number Lock should be on!
