So first to mention, I read the post about various activations methods - The Windows Activation in Depth Theres some 8.1 skype activation going on, people getting keys from web, and use them to activate through skype call. Whats going on there? Are those some legit keys? Why use phone activation then and not just over the internet? What about multiple users using the same key that gets posted? Or is it blocked right after first use? Will these keys last? Second question. There are multiple identical PCs(identical guts) with win8 core retail to be installed on. Can win 8.1 be installed on one of the PCs, with all the updates, custom settings and various programs. Then this hdd would be cloned to the rest of the PCs. Would then just changing keys using slmgr.vbs -ipk for another legal retail key allow normal activation, and therefore saving time with rest of those PCs?