Alright I read all the guides, and keep in mind I am a bit new to this. So basically, can I... 1. Download a copy of Windows 7 Pro/Home Premium which would be a retail version. 2. Change a certain file??? 3. After installation enter the OEM Keys ( One of the ones you have listed, or one of my own) 4. Validate it... 5. And then I have Windows 7? Is this correct?