Mine just started doing that. I just figured it out.... Press the FN Lock key - it's right after the F12 key. Now mine types the 0.
Hey guys I need some help.
All of my keys on my laptop function properly; however, my zero on my numeric keypad doesn't seem to want to work.
Every other number works but the zero.
Ah, I see, thats why you should provide a little more information in your original post. It sounds like that key may have been keybound to your Windows Media Player somehow... is WMP open in the background or anything? Also, check to see if Shift, Ctrl, or Alt keys are depressed as well.
Ill be honest with you, I do not know much about Windows 8, so hopefully someone else will be able to help you.