The Server 2012 R2 statement includes an explicit carve-out for multi-tenant environments (Hyper-V). It guarantees that the Installation Features Key does not cross VM boundaries. Windows 8.1 lacks this guarantee.
: The 25-character code used for the installation. The Server 2012 R2 statement includes an explicit
Despite both reaching their end-of-life (EOL) mainstream support cycles (Windows 8.1 EOL: January 10, 2023; Windows Server 2012 R2 EOL: October 10, 2023), millions of devices worldwide continue to run Microsoft’s NT 6.3 kernel family. For organizations bound by regulatory compliance (HIPAA, GDPR, SOX) or industrial control systems, understanding the original privacy stipulations tied to these operating systems is not just archival—it is a legal necessity. SOX) or industrial control systems