Prerequisites. A KMS host running on Windows Server 2019/2016/2012R2 can activate all Windows versions, including Windows Server 2019 and Windows 10 all the way down to Windows Server 2008R2 and Windows 7. Semi-Annual and Long-Term Service Channel (LTSC) are both supported by the KMS.
Can I use KMS to activate Windows 10?
Installing a KMS host key on a computer running Windows 10 allows you to activate other computers running Windows 10 against this KMS host and earlier versions of the client operating system, such as Windows 8.1 or Windows 7.
How do I enable KMS on Windows Server 2016?
After installation or update of your KMS server, activate it with CSVLK (so called KMS Host Key). You can get this key on Microsoft Volume License (VLSC) website. The key you need is called Windows Srv 2016 DataCtr/Std KMS and is located in License -> Relationship Summary -> Product Keys.