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Check if 32 bit or 64 bit processor from command line



How to check processor architecture whether its 32bit or 64bit?

One method is to query the registry from the command line.

Here’s a one liner command line that will check whether the PC processor is 32bit or 64bit.

reg query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" | find “ARCHITECTURE”

If the output is something like this:

PROCESSOR_ARCHITECTURE    REG_SZ    AMD64


Then it’s a 64bit, if it shows x86 then it’s a 32 bit.

reg query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" | find “IDENTIFIER”

Above query can also identify, the output shows Intel64 for 64bit.

Sample Output:
PROCESSOR_IDENTIFIER    REG_SZ    Intel64 Family 6 Model 142 Stepping 10, GenuineIntel


Omitting the find option from the “reg query” command will show quite a few information.

reg query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment"

This query command works in Windows 7, Windows 8 and Windows 10. I believe this will also work in Windows server OSes.


This command is quite useful if you are working remotely and limited to a command line option and need to know whether the processor is 64bit or x86 processor.


Cheers! Hope it helps. Till next time.



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