You can determine the version of Microsoft Windows installed on a system
from a
PowerShell prompt using [System.Environment]::OSVersion.Version
or (Get-WmiObject -class Win32_OperatingSystem).Caption.
PS C:\Users\Public> [System.Environment]::OSVersion.Version Major Minor Build Revision ----- ----- ----- -------- 10 0 15063 0 PS C:\Users\Public> (Get-WmiObject -class Win32_OperatingSystem).Caption Microsoft Windows 10 Pro PS C:\Users\Public> (Get-WmiObject -class Win32_OperatingSystem) SystemDirectory : C:\WINDOWS\system32 Organization : Microsoft BuildNumber : 15063 RegisteredUser : Jeanne SerialNumber : 00330-80000-00000-AA775 Version : 10.0.15063 PS C:\Users\Public>
You can also use Get-CimInstance.
PS C:\Users\Public> Get-CimInstance win32_operatingsystem SystemDirectory Organization BuildNumber RegisteredUser SerialNumber Version --------------- ------------ ----------- -------------- ------------ ------- C:\WINDOWS\system32 Microsoft 15063 Jeanne 00330-80000-00000-AA765 10.0.15063 PS C:\Users\Public> Get-CimInstance win32_operatingsystem | select Version Version ------- 10.0.15063 PS C:\Users\Public>
Get-WmiObject can be abbreviated to gwmi and
Get-CimInstance can be abbreviated to gcim.
PS C:\Users\Public> gwmi win32_operatingsystem | % caption Microsoft Windows 10 Pro PS C:\Users\Public gcim win32_operatingsystem | % caption Microsoft Windows 10 Pro PS C:\Users\Public>
If you want to know when the current operating system was installed and whether it is a 32-bit or 64-bit version of Windows, you can use the command below.
PS C:\Users\Public> gcim Win32_OperatingSystem | select Caption, Version, InstallDate, OSArchitecture Caption Version InstallDate OSArchitecture ------- ------- ----------- -------------- Microsoft Windows 10 Pro 10.0.15063 7/17/2017 9:09:48 AM 64-bit PS C:\Users\Public>
You can determine the installation history of security patches to the
operating system with Get-CimInstance -Class win32_quickfixengineering
.
PS C:\Users\Public> Get-CimInstance -Class win32_quickfixengineering
Source Description HotFixID InstalledBy InstalledOn
------ ----------- -------- ----------- -----------
Update KB4022405 NT AUTHORITY\SYSTEM 7/18/2017 12:00:00 AM
Security Update KB4038806 NT AUTHORITY\SYSTEM 9/12/2017 12:00:00 AM
Security Update KB4049179 NT AUTHORITY\SYSTEM 10/17/2017 12:00:00 AM
Security Update KB4041676 NT AUTHORITY\SYSTEM 10/11/2017 12:00:00 AM
PS C:\Users\Public>Note: commands tested on Windows 10 Professional system running PowerShell 5.1.
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