Just go to dell support website, enter your laptop tag and you will see all the drivers you need. I'm almost 100% sure that you will not find windows 8 drivers, but the ones for win 7 work well on win8. I have windows 8 installed on my m15x for a few months now and like it, gaming is not affected in any way, I did not encounter any problems with it, it boots faster than windows 7. If it's the first time you are reinstalling windows and you want everything to look the same as before, google: "restore the alienware look and feel"