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A massive pain point: You downloaded “Windows Server 2012 R2 Standard Evaluation (Build 9600)” from Microsoft. It works for 180 days. Now you want to keep it.

Windows Server 2012 R2 was a powerhouse of the mid-2010s data center, but even years after its release, IT admins often find themselves staring at the "Windows is not activated" watermark on Build 9600