I guess a fresh install will be available since Microsoft wants everybody to upgrade - no matter if the hard disk is empty or not. So that takes me to another thought. Where can I download Windows 10 RTM -version and which key do I need to make this free version to work? Microsoft doesn't want to see people using illegal versions of Windows 10, does it? So do I simply look under my laptop and type in my Windows 8 key number when Windows 10 is asking it? I don't want to visit Microsoft Store app in Windows 8.1 and start upgrade from there! By the way Apple doesn't want any keys or numbers. My Mac has free OS X 10.10 with fresh install.
No Consumer Preview? I only have the old Technical Preview to show you :( .