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The number of logical processors in use must not exceed the supported maximum

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Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016

For more information about best practices and scans, see Best Practices Analyzer.

Property Details
Operating System Windows Server 2016
Product/Feature Hyper-V
Severity Error
Category Policy

In the following sections, italics indicates text that appears in the Best Practices Analyzer tool for this issue.

Issue

The server is configured with too many logical processors.

Impact

Microsoft does not support running Hyper-V on this computer.

Resolution

Remove some processors from this machine or use msconfig to limit the number of available processors.

See the following instructions to use MSConfig. For details about removing processors, see the instructions that came with the computer or contact the hardware manufacturer. For details about maximum supported configurations for Hyper-V, see Plan for Hyper-V scalability in Windows Server 2016.

To limit the number of available processors

  1. Open the System Configuration app (Msconfig.exe). To do this, click Start, type msconfig, right-click the System Configuration desktop app and click Run as administrator.

  2. From the Boot tab, click Advanced options.

  3. Select Number of processors and then select a number in the list. Click OK.

  4. Restart the computer to run it using the new number of processors.