Finds the Windows version including Edition, Version and OS Build numbers for local or remote computers

Get-WindowsVersion.ps1

[CmdletBinding()]

Param
(
    [Parameter(Mandatory=$false,
                ValueFromPipelineByPropertyName=$true,
                ValueFromPipeline=$true
                )]
    [string[]]$ComputerName = $env:COMPUTERNAME
)


Begin
{
    $Table = New-Object System.Data.DataTable
    $Table.Columns.AddRange(@("ComputerName","Windows Edition","Version","OS Build"))
}
Process
{
    Foreach ($Computer in $ComputerName)
    {
        $Code = {
            $ProductName = (Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name ProductName).ProductName
            Try
            {
                $Version = (Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name ReleaseID -ErrorAction Stop).ReleaseID
            }
            Catch
            {
                $Version = "N/A"
            }
            $CurrentBuild = (Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name CurrentBuild).CurrentBuild
            $UBR = (Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name UBR).UBR
            $OSVersion = $CurrentBuild + "." + $UBR

            $TempTable = New-Object System.Data.DataTable
            $TempTable.Columns.AddRange(@("ComputerName","Windows Edition","Version","OS Build"))
            [void]$TempTable.Rows.Add($env:COMPUTERNAME,$ProductName,$Version,$OSVersion)
        
            Return $TempTable
        }

        If ($Computer -eq $env:COMPUTERNAME)
        {
            $Result = Invoke-Command -ScriptBlock $Code
            [void]$Table.Rows.Add($Result.Computername,$Result.'Windows Edition',$Result.Version,$Result.'OS Build')
        }
        Else
        {
            Try
            {
                $Result = Invoke-Command -ComputerName $Computer -ScriptBlock $Code -ErrorAction Stop
                [void]$Table.Rows.Add($Result.Computername,$Result.'Windows Edition',$Result.Version,$Result.'OS Build')
            }
            Catch
            {
                $_
            }
        }

    }

}
End
{
    Return $Table
}

What do you have to change to query remote machines?

I was curious about this as well. I have a txt file with all my machines in it and I would love to run this against

Just pass a computer name or list of computer names to the ComputerName parameter.

Suggest changing catch to the following so it deals with failed wirm connections with tidier output. Thanks for the script.

` Catch

        {

            Write-host "Failed connection to $computer" -ForegroundColor Yellow
            Write-Verbose $_ 
        }`

Update to get Windows Build Codenames

[CmdletBinding()]

Param
(
    [Parameter(Mandatory=$false,
                ValueFromPipelineByPropertyName=$true,
                ValueFromPipeline=$true
                )]
    [string[]]$ComputerName = $env:COMPUTERNAME
)


Begin
{
    $Table = New-Object System.Data.DataTable
    $Table.Columns.AddRange(@("ComputerName","Windows Edition","Version","OS Build","Codename"))
}
Process
{
    Foreach ($Computer in $ComputerName)
    {
        $Code = {
            $ProductName = (Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name ProductName).ProductName
            Try
            {
                $Version = (Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name ReleaseID -ErrorAction Stop).ReleaseID
            }
            Catch
            {
                $Version = "N/A"
            }
            $CurrentBuild = (Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name CurrentBuild).CurrentBuild
            switch ($CurrentBuild)
            { 
                10240 { $Codename = "1507" }
                10586 { $Codename = "1511" }
                14393 { $Codename = "1607" }
                15063 { $Codename = "1703" }
                16299 { $Codename = "1709" }
                17134 { $Codename = "1803" }
                17763 { $Codename = "1809" }
                18362 { $Codename = "1903" }
                18363 { $Codename = "19H2" }
                19041 { $Codename = "20H2" }
                19042 { $Codename = "20H2" }
                19043 { $Codename = "21H2" }
                19044 { $Codename = "22H2" }
            }
            $UBR = (Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion' -Name UBR).UBR
            $OSVersion = $CurrentBuild + "." + $UBR

            $TempTable = New-Object System.Data.DataTable
            $TempTable.Columns.AddRange(@("ComputerName","Windows Edition","Version","OS Build","CodeName"))
            [void]$TempTable.Rows.Add($env:COMPUTERNAME,$ProductName,$Version,$OSVersion,$Codename)
        
            Return $TempTable
        }

        If ($Computer -eq $env:COMPUTERNAME)
        {
            $Result = Invoke-Command -ScriptBlock $Code
            [void]$Table.Rows.Add($Result.Computername,$Result.'Windows Edition',$Result.Version,$Result.'OS Build',$Result.'CodeName')
        }
        Else
        {
            Try
            {
                $Result = Invoke-Command -ComputerName $Computer -ScriptBlock $Code -ErrorAction Stop
                [void]$Table.Rows.Add($Result.Computername,$Result.'Windows Edition',$Result.Version,$Result.'OS Build',$Result.'CodeName')
            }
            Catch
            {
                $_
            }
        }

    }

}
End
{
    Return $Table
}

@ernewes those code names are only valid for Windows 10, or not?