Hate it that everytime you boot your computer you need to enable the NUM Lock key so that you can use it everytime.
Here is an easy solution to enable NUM Lock on your computer during every boot time.
On most computers, to enable NUM Lock on boot up you just go to the system BIOS and enable NUM Lock. If this feature is not available, the next easy thing to do is to go and do this in your Windows Registry. Make sure that anytime you tweak your registry you backup your registry just in case.
go to Run -> command type Regedit -> HKEY_CURRENT_USER_CONTROL PANEL|KEYBOARD -> and look for a file named Initial Keyboard Indicators -> and make sure that it's set to 2, if not click on it twice change the value and hit enter to save. Just re-boot and your NUM Lock key problem should disappear.