First, where do I get a legit WMC key? Can I get a legit key if my Windows is KMS activated? Second, what is the best method to get 8.1 with WMC installed? I've read that 8.1 Pro VL no longer allows you to add features. So I assume that I can't clean install Windows Pro VL and use MTK 2.5 Beta to activate and then upgrade to WMC. I've read this guide on generic activation tokens, but it seems this method might not work in the future. I've also read about "Pre-Activation" with MSMG, but it seems you need a legit key or you already need valid activation tokens. So, I assume I have to take the steps to make "generic activation tokens" before I can even make a pre-activated 8.1 WMC ISO. What is the best way to go about this as of now? Is it possible for MTK 2.5 to activate retail copies of 8.1 Pro? Then still use add features to get WMC (using a generic WMC key)? Also, I am still unsure on how to go about getting a legit WMC key. I was told they are free, but I don't know where on Microsoft's site to get them.