PowerShell: Check if Windows Is 32-bit or 64-bit
Need to know if a machine is running 32-bit or 64-bit Windows - for software compatibility, driver checks, or scripting logic? This one-liner pulls it straight from the OS.
Prerequisites:
- Privileges: None
- Module: Built-in, no import needed
Quick Command:
Get-CimInstance -ClassName Win32_OperatingSystem | Select-Object OSArchitectureExample Output:
OSArchitecture
--------------
ARM 64-bit Processor📦
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How It Works:
- Get-CimInstance -ClassName Win32_OperatingSystem queries the operating system class through CIM/WMI, which holds core system details like version, build number, and architecture.
- OSArchitecture returns the architecture of the installed Windows - on traditional x86/x64 machines this is typically a plain 32-bit or 64-bit, but on ARM-based hardware it can return something like ARM 64-bit Processor instead.
- Select-Object trims the output down to just this one property, since Win32_OperatingSystem also returns a lot more data (like Caption, Version, or BuildNumber) that isn't needed for a quick architecture check.