To find out which version of Windows is installed on a computer, there are several simple methods:

1. Use the Run Command:
   • Press the Windows key + R on your keyboard.
   • Type "winver" (without quotes) in the Run dialog box and press Enter or click OK.
   • A window titled "About Windows" will appear displaying the Windows edition, version, and OS build information.
2. Use Settings:
   • Click on the Start button, then select Settings (gear icon).
   • Go to System and then scroll down to select About.
   • Under Windows Specifications, you will see the Edition, Version, and OS Build details of your Windows.
3. Use System Information:
   • Open the Start menu and type "System Information" in the search bar.
   • Select System Information from the results.
   • In the System Summary section, find detailed information about the Windows version installed.
4. Use Command Prompt or PowerShell:

   • Open Command Prompt or PowerShell.

   • Type the command ver and press Enter, which will display the Windows version.

   • Alternatively, for more detailed info, use this PowerShell command:

     powershell
     
     Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' | Select-Object ReleaseId, CurrentBuildNumber
     

These methods work for Windows 10, Windows 11, and other recent versions, providing details about the specific edition and build number of Windows running on the system.