A Quick Tip To Check Operating System Architecture

You can install either 32-bit or 64-bit Operating System on a 64-bit Hardware. You check whether you are running a 32-bit or 64-bit Operating Systems by following steps outlined below:

Method 1 – Checking using the command line


  • Log on to computer.
  • Go to Command Prompt
  • Type "SET Processor" (without double quotes)
  • You will see the output similar to below:

Method 2 – Checking using the registry:


  • Go to Registry Editor
  • Navigate to the following location:
  • HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment
  • In Right Pane, you will see a regitry entry; PROCESSOR_ARCHITECTURE. This entry stores either x86 or x64.


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3 thoughts on “A Quick Tip To Check Operating System Architecture”

  1. And won’t work if you have 64 bit OS when you use 32-bit cmd.exe. After typing “set processor” command you will see the output:
    So, OS is 64-bit and PROCESSOR_ARCHITECTURE shows 32-bit architecture.
    Proper command would be:
    if /I “%PROCESSOR_ARCHITECTURE%” equ “x86” if not defined PROCESSOR_ARCHITEW6432 (set OSARCH=32BIT) else (set OSARCH=64BIT)

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