Question
We have purchased 2048U-RTR4 with 4x E5-4667 v4 CPU (18cores per socket, total 72 cores), install Windows Server 2012R2 but there are only 64 cores included.
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Answer
Please refer the following Microsoft SPEC requirement, for quad CPU platform they need 2 Windows Server 2012R2OS authorization, please confirm your OS authorization status first.

https://www.microsoft.com/taiwan/licensing/about-licensing/windowsserver2012.aspx
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