Meaning
The error code 0xC004F074 theoretically means that the KMS server could not be contacted. This can have numerous reasons, not all of which make sense.
Frequent Causes
The three most frequent causes are easily fixed and are as follows:
- The Computer is not on the LRZ network: The KMS server is only reachable from within the LRZ network. If the computer is not on it, the LRZ VPN can be used to connect to it. If in doubt, it is always a good idea to do this.
- The server address is incorrect: While typing or copying the activation command from a website, it is easy mistype it, fail to copy a leading / trailing character or copy extraneous leading / trailing characters. Check if this is the case and make sure, the correct address for the KMS server is set.
- The system date / time is incorrectly set: If the system date / time is off, the KMS activation cannot succeed. To confuse users, this is indicated with the same error code that is used when the server cannot be reached at all. To fix this, simply adjust the systems date / time.
You can find detailed instructions on our Wiki page.