PowerShell cmdlets to get WindowsUpdate patch file List.

readme.md

Summary

PowerShell cmdlets to check WindowsUpdate and return patch list.

This script is intended for offline Windows patching. (MBSA 2.2 currently not support Windows 8/Windows Server 2012)

Usage

following sample check WindowsUpdate for specified computer, and download files to network share.

$params=@{
    TargetComputer      = "172.16.100.2"
    Credential          = Get-Credential -UserName "localhost\Administrator" -Message "Enter credential"
    DownloadFolder      = "\\172.16.0.1\Shared\Images\WindowsUpdate\Windows8"
    WindowsUpdateFilte  = "IsHidden=0"
}

#Remove files that updated periodically
Get-ChildItem $params.DownloadFolder | where Name -Like "am_delta_*.exe" | Remove-Item             #Windows Defender Definition
Get-ChildItem $params.DownloadFolder | where Name -Like "im*.cab" | Remove-Item                    #IME patch
Get-ChildItem $params.DownloadFolder | where Name -Like "windows-kb890830-*.exe" | Remove-Item     #Windows Malicious Software Removal Tool
Start-DownloadWindowsUpdateFile @params -Verbose

Get-WindowsUpdateFileList.ps1

#Requires –Version 3

#Get WindowsUpdate List for offline patch
function Get-WindowsUpdateFileList
{
param(
    [Parameter(Mandatory=$True)]
    [string] $Filter
)
    $objSession = New-Object -ComObject "Microsoft.Update.Session"
    $objSearcher = $objSession.CreateUpdateSearcher()
    $results = $objSearcher.Search($Filter)
   
    $downloadList =@()
    foreach($update in $results.Updates)
    {
        $title = $update.Title
        $date  = $update.LastDeploymentChangeTime
        $isInstalled  = $update.IsInstalled
        $rebootRequired = $update.RebootRequired
        
        foreach($bundledUpdate in $update.BundledUpdates)
        {
            foreach($content in $bundledUpdate.DownloadContents)
            {
                #if($url.Contains("-express_") -or $url.Contains("-delta_") -or $url.EndsWith(".psf"))
                if($content.IsDeltaCompressedContent)
                {
                    #Skip express package(Delta Compressed Package) and .psf file
                    continue
                }

                #Append to download list
                $url = $content.DownloadURL
                $fileName = [IO.Path]::GetFileName($url)
                $downloadList += [pscustomobject]@{Title=$title;LastDeploymentChangeTime=$date ;DownloadURL=$url;IsInstalled=$isInstalled;RebootRequired=$rebootRequired;FileName=$fileName}
            }
        }
    }
    return $downloadList
}

function Start-DownloadWindowsUpdateFile
{
[Cmdletbinding()]
param(
    [string] $TargetComputer,
    $Credential,
    [string] $DownloadFolder,
    [string] $WindowsUpdateFilter
)
    if(!(Test-Path $DownloadFolder))
    {
        Write-Error "Destination folder not found!"
    }
   
    
    if($TargetComputer -eq $env:ComputerName)
    {
        Write-Verbose ("Search WindowsUpdate for local computer...")
        $results = Get-WindowsUpdateFileList $WindowsUpdateFilter
    }
    else
    {
        Write-Verbose ("Search WindowsUpdate for remote computer({0})..." -f $TargetComputer)
        $results = Invoke-Command -Computer $TargetComputer -Credential $Credential -ScriptBlock ${function:Get-WindowsUpdateFileList} -ArgumentList $WindowsUpdateFilter
    }

    Write-Verbose ("WindowsUpdate check completed: {0} files found" -f $results.Count) 

    #$results | select Title,FileName, LastDeploymentChangeTime | Format-List

    #Start Download Files
    Write-Verbose ("Download files started...")
    foreach($update in $results)
    {
        $fileName = [IO.Path]::GetFileName($update.DownloadURL)
        $filePath = Join-Path $DownloadFolder $fileName
        if(Test-Path $filePath)
        {
            Write-Verbose  "`tSkip already exists patch: $fileName"
            continue
        }
        
        Write-Verbose  "`tStart download patch: $fileName"
        $params = @{
            Source      = $update.DownloadURL
            DisplayName = $update.Title
            Description = $update.DownloadURL
            Destination = $DownloadFolder
        }
        Start-BitsTransfer @params
    }
    Write-Verbose ("Download files completed...")
}

Hi Team,

How to modify the above code to download only give KB article number and save it local computer.

Request you to kindly help me to modify.

Thanks and regards,

senthil