If during the activation of your Windows Key you get an error with the code 0xC004C008, it means that it requires phone activation.
To activate the key we recommend using the automatic phone activation system. This method of activation does not require contacting a live agent.
The key is not working
If you have activated the key according to the guide but the code appears not to work, please check what type of error message you receive and depending on it follow the appropriate instructions: