This is a good question that I had't thought to ask myself. I assumed it was the full version. When I look at my system information it does list the last five characters of the product key, but none of my documentation has the full key number anywhere. I can choose to upgrade to Windows 8 Pro. I can't find Media Player anywhere on my computer, so ...? This is one of the times when I kind of hate the Windows experience. There always seems to be a catch. I'll email ASUS support when I have the time and get the answer for both of us.