Wednesday, 21 September 2011

How to get processor architecture information on Windows

Is your machine 32-bit or 64-bit?

One way of getting this information is reading PROCESSOR_ARCHITECTURE value which can be found in Windows Registry at this location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment.

This value on my 32-bit Intel machine is x86 and on another 64-bit machine with Intel Xeon processor is AMD64.
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