Hello I am buying a new cpu and a new mobo. I am going from an AMD to Intel. Since I have to download new drivers for the mobo. I have to get rid of the old AMD ones right? I was thinking I could just leave the old drivers on but I am worried that the old drivers would interfere with the new drivers.I was wondering is it safe to leave the old drivers on? If not I would have to reformat my Hard drive.I am also worried that my key for Windows 8 will not work when I reformat the Hard drive.So the question is will it still work or do I have to buy a new copy and doing this will I still be able to have my free copy of Windows 10 when it comes out.