This tip is not a performance tip but may be liked by those who like customization. If you are one of those who do not want NUMLOCK to be on at boot time, here is the trick. Open registry (by going to START-RUN and entering regedit) and navigate to [HKEY_USERS\.DEFAULT\Control Panel\Keyboard] and look for a string key by the name "InitialKeyboardIndicators". If its not there , create it else change its value to 0 to set NUMLOCK off or 2 to set NUMLOCK on.IMPORTANT DISCLAIMER: Before doing anything with registry, It is very important that you take a backup of registry by exporting it. Remember even a minor mistake in registry could render your system unusable or will cause it to stop or crash. XPTools is not responsible for any such damage that may occur directly or indirectly as a result of your applying these changes. Don't try it if you are not sure. Use at your own risk