The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.
The latest version of this topic can be found at __writecr4.
Writes the value
Data to the CR4 register.
void writecr4( unsigned __int64 Data );
The value to write to the CR4 register.
Header file <intrin.h>
This intrinsic is only available in kernel mode, and the routine is only available as an intrinsic.