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Check for Spectre and Meltdown CPU flaws using Windows Powershell

Microsoft have provided a Powershell tool for checking and reporting on an individual Windows computer.

Press the Windows key on your keyboard and type PowerShell – when you see the shortcut appear in the search results, right click on it and choose Run as Administrator.

Quick Instructions

To install the module type

Install-Module SpeculationControl

You might get prompted to install the NuGet provider. Type Y and press enter. If you’re asked about installing from an untrusted repository do the same thing again.

Once the module installs type

Get-SpeculationControlSettings

If you see messages about execution error you can type

Set-ExecutionPolicy Bypass

References

Microsoft have released an article explaining the output of the tool.