https://learn.microsoft.com/en-us/windows-hardware/drivers/ddi/ntddk/nf-ntddk-rtlgetenabledextendedfeatures
RtlGetEnabledExtendedFeatures function (ntddk.h) - Windows drivers | Microsoft Learn
The RtlGetEnabledExtendedFeatures routine returns a mask of extended processor features that are enabled by the system.
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