The hard drive in my laptop that I'd had for a little over 2 years now got broke and the laptop won't boot properly. I tried the HDD in another computer (not as the boot drive) and the computer will hardly respond. I called ASUS and they said that the operating system and other important pieces of data were lost. My question is if I buy a new hard drive do i need to buy a new copy of windows too? Is the windows key somewhere on the laptop, can I call ASUS and have them tell me my windows key, or if i put a new hard drive it will automatically pick up the windows code because it is on the hard drive? Thanks in advance.