Hello. Now I'm running Windows 8 activated via phone and some key from internet. I want to install Windows 8.1 on second PC. I want to: -Download official x64 iso file for Windows 8.1 (Still looking for link). -Apply some key from internet -Activate via phone (UK). Is this going to work now? It worked some time ago. Don't know if something changed. P.S. Do you have any Windows 8.1 keys?