PowerShell: Get Windows Version
Windows version mismatches cause more troubleshooting headaches than they should. This one-liner gets you the exact build in seconds.
Prerequisites:
- Privileges: None
- Module: Built-in, no import needed
Quick Command:
Get-CimInstance -ClassName Win32_OperatingSystem | Select-Object Caption, VersionExample Output:
Caption Version
------- -------
Microsoft Windows 11 Pro 10.0.26200📦
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How It Works:
- Get-CimInstance queries the Win32_OperatingSystem WMI class, which stores information about the installed operating system.
- Caption shows the human-readable edition name (e.g. Windows 11 Pro, Windows 10 Enterprise).
- Version shows the internal build version in major.minor.build format - this is the number you'll want when checking application compatibility or confirming whether a machine has a specific feature update installed.
- Select-Object limits the output to just these two properties, since Win32_OperatingSystem returns a lot more data (like BuildNumber, OSArchitecture, or InstallDate) that isn't needed for a quick version check.