Received my new Lenovo Thinkpad E-540 laptop today with Windows 7 installed. I am wanting to install Windows 8. I was supplied with 4 disks that is supposed to upgrade to Windows 8/Windows 7 Downgrade (whatever that means). They are called Operating System Recovery Discs and Media Recovery Disks. I have followed the directions but still no install. Any suggestions as to where I can take this laptop to get Windows 8 installed?