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Microsoft Hyper V* Hotfix Required for Intel® Xeon® Processors 5600 Series


Last Reviewed: 22-Aug-2017
Article ID: 000008208

What am I seeing?

For systems with an Intel® Xeon® Processor 5600 Series with Windows* Server 2008, you need to install the Microsoft* hotfix KB 981791 before installing Hyper-V.

Why am I seeing it?

The Intel® Xeon® Processor 5600 Series has a new caching feature that was not introduced until after Windows* Server 2008 SP2, which may cause BSOD on systems without the hotfix installed.

How do I fix it?

Install the hotfix.

Microsoft* Support
STOP: 0x0000001a error message on a computer that has an Intel Westmere processor together with the Hyper-V role installed on Windows Server 2008 or on Windows Server 2008 R2