How to get pre-installed windows 8 on new hard drive

Hello, I just bought a lenovo Z580 with windows 8 and I also have a new hard drive coming. The first thing I tried to do was create factory restore disks so that when the new hard drive gets here I can remove the old hard drive and replace it with the new one and put the pre-installed windows 8 that came with the laptop on it. I can't however find a way to create factory restore disks. ...