Product Key Windows 8.1 Server 2019 R2
Installations of kms on windows 8.1 or windows server 2012 r2 must be updated in order to support activation of clients running windows 10 and windows server 2016 or windows server 2019, or newer client or server operating systems.. Windows 10 , windows 8.1, windows server 2012, windows server 2012 r2, windows server 2016 - kms host: at least windows server 2012 or windows 8.1 (volume editions). - active directory-based activation: set-up and activate the product key online. 4. if setting up a kms host, open port 1688 to allow the kms host service through.