Windows 7 upgraded from Vista but cannot Activate it: Error Code 0xC004F074


  • "No key management Service (KMS) could be contacted."

    Recieved the DVD forom MSDN-Subscription and installed Windows 7. Everything seems fine sofar .. but: I can't activate it an am afraid now, that soon it will stop working. What shall I do?
    Thursday, October 29, 2009 11:09 AM


  • soulution found on a Blog here:

    "The thing is that when you install Windows 7 Enterprise you never really enter and product key and therefore Windows cannot be activated, since the key is moot.

    What you have to do is change the product key by clicking the correct link in the activation window. The activation window is found in the Control Panel."

    • Marked as answer by Klaus W Thursday, October 29, 2009 1:39 PM
    Thursday, October 29, 2009 1:38 PM