Code: Activating Windows(R), Professional edition (c06b6981-d7fd-4a35-b7b4-054742b7af67) ... Error: 0xC004F074 The Software Licensing Service reported that the computer could not be activated. No Key Management Service (KMS) could be contacted. Please see the Application Event Log for additional information.
Ok, I've browsed through 61 pages and I didn't find the answer. I'm on Windows 8 pro WMC using KMS for pro, then with the WMC upgrade key from last year. As mentioned, the op post states "Retail keys (including ProWMC upgrade keys), OEM: DM keys (Pre-installed windows 8 OEM), OEM:NONSLP keys activated users can upgrade & stay activated!" . However, by MrAnalysis, it seems that the upgrade to 8.1 is not possible. So is it actually possible or? I don't mind having to call up Microsoft to enter the 9 set codes to activate though. Totally confused.
You can't have read through the 61 pages, because otherwise you would have known the answer to your question. Do you really expect your KMS activation to work? Do you really not expect Microsoft to have tweaked their activation system with their new Windows?
guys this is the same build that would be available in October right? RTM (Release to Manufacturing) would be the exact same right?