Microsoft VAMT: The specified product key is invalid or is unsupported

Problem I set up a KMS server and installed the Volume Activation Management Tool (VAMT) to activate the product keys. I was unable to add the Server 2019 keys. Server 2016 and Server 2022 worked without any problems. With Server 2019, I consistently received the following error message: The specified product key is invalid or … Weiterlesen