Get-WUInstall.ps1

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Function Get-WUInstall
{
    <#
    .SYNOPSIS
        Download and install updates.
 
    .DESCRIPTION
        Use Get-WUInstall to get list of available updates, next download and install it.
        There are two types of filtering update: Pre search criteria, Post search criteria.
        - Pre search works on server side, like example: ( IsInstalled = 0 and IsHidden = 0 and CategoryIds contains '0fa1201d-4330-4fa8-8ae9-b877473b6441' )
        - Post search work on client side after downloading the pre-filtered list of updates, like example $KBArticleID -match $Update.KBArticleIDs
         
        Update occurs in four stages: 1. Search for updates, 2. Choose updates, 3. Download updates, 4. Install updates.
         
    .PARAMETER UpdateType
        Pre search criteria. Finds updates of a specific type, such as 'Driver' and 'Software'. Default value contains all updates.
 
    .PARAMETER UpdateID
        Pre search criteria. Finds updates of a specific UUID (or sets of UUIDs), such as '12345678-9abc-def0-1234-56789abcdef0'.
 
    .PARAMETER RevisionNumber
        Pre search criteria. Finds updates of a specific RevisionNumber, such as '100'. This criterion must be combined with the UpdateID param.
 
    .PARAMETER CategoryIDs
        Pre search criteria. Finds updates that belong to a specified category (or sets of UUIDs), such as '0fa1201d-4330-4fa8-8ae9-b877473b6441'.
 
    .PARAMETER IsInstalled
        Pre search criteria. Finds updates that are installed on the destination computer.
 
    .PARAMETER IsHidden
        Pre search criteria. Finds updates that are marked as hidden on the destination computer. Default search criteria is only not hidden upadates.
     
    .PARAMETER WithHidden
        Pre search criteria. Finds updates that are both hidden and not on the destination computer. Overwrite IsHidden param. Default search criteria is only not hidden upadates.
         
    .PARAMETER Criteria
        Pre search criteria. Set own string that specifies the search criteria.
 
    .PARAMETER ShowSearchCriteria
        Show choosen search criteria. Only works for pre search criteria.
         
    .PARAMETER Category
        Post search criteria. Finds updates that contain a specified category name (or sets of categories name), such as 'Updates', 'Security Updates', 'Critical Updates', etc...
         
    .PARAMETER KBArticleID
        Post search criteria. Finds updates that contain a KBArticleID (or sets of KBArticleIDs), such as 'KB982861'.
     
    .PARAMETER Title
        Post search criteria. Finds updates that match part of title, such as ''
 
    .PARAMETER NotCategory
        Post search criteria. Finds updates that not contain a specified category name (or sets of categories name), such as 'Updates', 'Security Updates', 'Critical Updates', etc...
         
    .PARAMETER NotKBArticleID
        Post search criteria. Finds updates that not contain a KBArticleID (or sets of KBArticleIDs), such as 'KB982861'.
     
    .PARAMETER NotTitle
        Post search criteria. Finds updates that not match part of title.
         
    .PARAMETER IgnoreUserInput
        Post search criteria. Finds updates that the installation or uninstallation of an update can't prompt for user input.
     
    .PARAMETER IgnoreRebootRequired
        Post search criteria. Finds updates that specifies the restart behavior that not occurs when you install or uninstall the update.
     
    .PARAMETER ServiceID
        Set ServiceIS to change the default source of Windows Updates. It overwrite ServerSelection parameter value.
 
    .PARAMETER WindowsUpdate
        Set Windows Update Server as source. Default update config are taken from computer policy.
         
    .PARAMETER MicrosoftUpdate
        Set Microsoft Update Server as source. Default update config are taken from computer policy.
         
    .PARAMETER ListOnly
        Show list of updates only without downloading and installing. Works similar like Get-WUList.
     
    .PARAMETER DownloadOnly
        Show list and download approved updates but do not install it.
     
    .PARAMETER AcceptAll
        Do not ask for confirmation updates. Install all available updates.
     
    .PARAMETER AutoReboot
        Do not ask for rebbot if it needed.
     
    .PARAMETER IgnoreReboot
        Do not ask for reboot if it needed, but do not reboot automaticaly.
     
    .PARAMETER AutoSelectOnly
        Install only the updates that have status AutoSelectOnWebsites on true.
 
    .PARAMETER Debuger
        Debug mode.
 
    .EXAMPLE
        Get info about updates that are not require user interaction to install.
     
        PS C:\> Get-WUInstall -MicrosoftUpdate -IgnoreUserInput -WhatIf -Verbose
        VERBOSE: Connecting to Microsoft Update server. Please wait...
        VERBOSE: Found [39] Updates in pre search criteria
        VERBOSE: Found [5] Updates in post search criteria to Download
        What if: Performing operation "Aktualizacja firmy Microsoft z ekranem wybierania przeglądarki dla użytkowników systemu W
        indows 7 dla systemów opartych na procesorach x64 w Europejskim Obszarze Gospodarczym (KB976002)[1 MB]?" on Target "KOMP
        UTER".
        What if: Performing operation "Aktualizacja dla systemu Windows 7 dla systemów opartych na procesorach x64 (KB971033)[1
        MB]?" on Target "KOMPUTER".
        What if: Performing operation "Aktualizacja systemu Windows 7 dla komputerów z procesorami x64 (KB2533552)[1 MB]?" on Ta
        rget "KOMPUTER".
        What if: Performing operation "Program Microsoft .NET Framework 4 Client Profile w systemie Windows 7 dla systemów opart
        ych na procesorach x64 (KB982670)[1 MB]?" on Target "KOMPUTER".
        What if: Performing operation "Narzędzie Windows do usuwania złośliwego oprogramowania dla komputerów z procesorem x64 -
         grudzień 2011 (KB890830)[1 MB]?" on Target "KOMPUTER".
 
        X Status KB Size Title
        - ------ -- ---- -----
        2 Rejected KB890830 1 MB Aktualizacja firmy Microsoft z ekranem wybierania przeglądarki dla użytkowników system...
        2 Rejected KB890830 1 MB Aktualizacja dla systemu Windows 7 dla systemów opartych na procesorach x64 (KB971033)
        2 Rejected KB890830 1 MB Aktualizacja systemu Windows 7 dla komputerów z procesorami x64 (KB2533552)
        2 Rejected KB890830 1 MB Program Microsoft .NET Framework 4 Client Profile w systemie Windows 7 dla systemów op...
        2 Rejected KB890830 1 MB Narzędzie Windows do usuwania złośliwego oprogramowania dla komputerów z procesorem x6...
        VERBOSE: Accept [0] Updates to Download
     
    .EXAMPLE
        Get updates from specific source with title contains ".NET Framework 4". Everything automatic accept and install.
     
        PS C:\> Get-WUInstall -ServiceID 9482f4b4-e343-43b6-b170-9a65bc822c77 -Title ".NET Framework 4" -AcceptAll
 
        X Status KB Size Title
        - ------ -- ---- -----
        2 Accepted KB982670 48 MB Program Microsoft .NET Framework 4 Client Profile w systemie Windows 7 dla systemów op...
        3 Downloaded KB982670 48 MB Program Microsoft .NET Framework 4 Client Profile w systemie Windows 7 dla systemów op...
        4 Installed KB982670 48 MB Program Microsoft .NET Framework 4 Client Profile w systemie Windows 7 dla systemów op...
 
    .EXAMPLE
        Get updates with specyfic KBArticleID. Check if type are "Software" and automatic install all.
         
        PS C:\> $KBList = "KB890830","KB2533552","KB2539636"
        PS C:\> Get-WUInstall -Type "Software" -KBArticleID $KBList -AcceptAll
 
        X Status KB Size Title
        - ------ -- ---- -----
        2 Accepted KB2533552 9 MB Aktualizacja systemu Windows 7 dla komputerów z procesorami x64 (KB2533552)
        2 Accepted KB2539636 4 MB Aktualizacja zabezpieczeń dla programu Microsoft .NET Framework 4 w systemach Windows ...
        2 Accepted KB890830 1 MB Narzędzie Windows do usuwania złośliwego oprogramowania dla komputerów z procesorem x6...
        3 Downloaded KB2533552 9 MB Aktualizacja systemu Windows 7 dla komputerów z procesorami x64 (KB2533552)
        3 Downloaded KB2539636 4 MB Aktualizacja zabezpieczeń dla programu Microsoft .NET Framework 4 w systemach Windows ...
        3 Downloaded KB890830 1 MB Narzędzie Windows do usuwania złośliwego oprogramowania dla komputerów z procesorem x6...
        4 Installed KB2533552 9 MB Aktualizacja systemu Windows 7 dla komputerów z procesorami x64 (KB2533552)
        4 Installed KB2539636 4 MB Aktualizacja zabezpieczeń dla programu Microsoft .NET Framework 4 w systemach Windows ...
        4 Installed KB890830 1 MB Narzędzie Windows do usuwania złośliwego oprogramowania dla komputerów z procesorem x6...
     
    .EXAMPLE
        Get list of updates without language packs and updatets that's not hidden.
 
        PS C:\> Get-WUInstall -NotCategory "Language packs" -ListOnly
 
        X Status KB Size Title
        - ------ -- ---- -----
        1 ------ KB2640148 8 MB Aktualizacja systemu Windows 7 dla komputerów z procesorami x64 (KB2640148)
        1 ------ KB2600217 32 MB Aktualizacja dla programu Microsoft .NET Framework 4 w systemach Windows XP, Se...
        1 ------ KB2679255 6 MB Aktualizacja systemu Windows 7 dla komputerów z procesorami x64 (KB2679255)
        1 ------ KB915597 3 MB Definition Update for Windows Defender - KB915597 (Definition 1.125.146.0)
         
    .NOTES
        Author: Michal Gajda
        Blog : http://commandlinegeeks.com/
         
    .LINK
        http://gallery.technet.microsoft.com/scriptcenter/2d191bcd-3308-4edd-9de2-88dff796b0bc
        http://msdn.microsoft.com/en-us/library/windows/desktop/aa386526(v=vs.85).aspx
        http://msdn.microsoft.com/en-us/library/windows/desktop/aa386099(v=vs.85).aspx
        http://msdn.microsoft.com/en-us/library/ff357803(VS.85).aspx
 
    .LINK
        Get-WUServiceManager
        Get-WUList
    #>

    [OutputType('PSWindowsUpdate.WUInstall')]
    [CmdletBinding(
        SupportsShouldProcess=$True,
        ConfirmImpact="High"
    )]    
    Param
    (
        #Pre search criteria
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [ValidateSet("Driver", "Software")]
        [String]$UpdateType="",
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [String[]]$UpdateID,
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [Int]$RevisionNumber,
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [String[]]$CategoryIDs,
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [Switch]$IsInstalled,
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [Switch]$IsHidden,
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [Switch]$WithHidden,
        [String]$Criteria,
        [Switch]$ShowSearchCriteria,
        
        #Post search criteria
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [String[]]$Category="",
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [String[]]$KBArticleID,
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [String]$Title,
        
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [String[]]$NotCategory="",
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [String[]]$NotKBArticleID,
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [String]$NotTitle,
        
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [Alias("Silent")]
        [Switch]$IgnoreUserInput,
        [parameter(ValueFromPipelineByPropertyName=$true)]
        [Switch]$IgnoreRebootRequired,
        
        #Connection options
        [String]$ServiceID,
        [Switch]$WindowsUpdate,
        [Switch]$MicrosoftUpdate,
        
        #Mode options
        [Switch]$ListOnly,
        [Switch]$DownloadOnly,
        [Alias("All")]
        [Switch]$AcceptAll,
        [Switch]$AutoReboot,
        [Switch]$IgnoreReboot,
        [Switch]$AutoSelectOnly,
        [Switch]$Debuger
    )

    Begin
    {
        If($PSBoundParameters['Debuger'])
        {
            $DebugPreference = "Continue"
        } #End If $PSBoundParameters['Debuger']
        
        $User = [Security.Principal.WindowsIdentity]::GetCurrent()
        $Role = (New-Object Security.Principal.WindowsPrincipal $user).IsInRole([Security.Principal.WindowsBuiltinRole]::Administrator)

        if(!$Role)
        {
            Write-Warning "To perform some operations you must run an elevated Windows PowerShell console."    
        } #End If !$Role
    }

    Process
    {
        #region STAGE 0
        ######################################
        # Start STAGE 0: Prepare environment #
        ######################################
        
        Write-Debug "STAGE 0: Prepare environment"
        If($IsInstalled)
        {
            $ListOnly = $true
            Write-Debug "Change to ListOnly mode"
        } #End If $IsInstalled

        Write-Debug "Check reboot status only for local instance"
        Try
        {
            $objSystemInfo = New-Object -ComObject "Microsoft.Update.SystemInfo"    
            If($objSystemInfo.RebootRequired)
            {
                Write-Warning "Reboot is required to continue"
                If($AutoReboot)
                {
                    Restart-Computer -Force
                } #End If $AutoReboot

                If(!$ListOnly)
                {
                    Return
                } #End If !$ListOnly
                
            } #End If $objSystemInfo.RebootRequired
        } #End Try
        Catch
        {
            Write-Warning "Support local instance only, Continue..."
        } #End Catch
        
        Write-Debug "Set number of stage"
        If($ListOnly)
        {
            $NumberOfStage = 2
        } #End $ListOnly
        ElseIf($DownloadOnly)
        {
            $NumberOfStage = 3
        } #End Else $ListOnly If $DownloadOnly
        Else
        {
            $NumberOfStage = 4
        } #End Else $DownloadOnly
        
        ####################################
        # End STAGE 0: Prepare environment #
        ####################################
        #endregion
        
        #region STAGE 1
        ###################################
        # Start STAGE 1: Get updates list #
        ###################################
        
        Write-Debug "STAGE 1: Get updates list"
        Write-Debug "Create Microsoft.Update.ServiceManager object"
        $objServiceManager = New-Object -ComObject "Microsoft.Update.ServiceManager" 
        
        Write-Debug "Create Microsoft.Update.Session object"
        $objSession = New-Object -ComObject "Microsoft.Update.Session" 
        
        Write-Debug "Create Microsoft.Update.Session.Searcher object"
        $objSearcher = $objSession.CreateUpdateSearcher()

        If($WindowsUpdate)
        {
            Write-Debug "Set source of updates to Windows Update"
            $objSearcher.ServerSelection = 2
            $serviceName = "Windows Update"
        } #End If $WindowsUpdate
        ElseIf($MicrosoftUpdate)
        {
            Write-Debug "Set source of updates to Microsoft Update"
            $serviceName = $null
            Foreach ($objService in $objServiceManager.Services) 
            {
                If($objService.Name -eq "Microsoft Update")
                {
                    $objSearcher.ServerSelection = 3
                    $objSearcher.ServiceID = $objService.ServiceID
                    $serviceName = $objService.Name
                    Break
                }#End If $objService.Name -eq "Microsoft Update"
            }#End ForEach $objService in $objServiceManager.Services
            
            If(-not $serviceName)
            {
                Write-Warning "Can't find registered service Microsoft Update. Use Get-WUServiceManager to get registered service."
                Return
            }#Enf If -not $serviceName
        } #End Else $WindowsUpdate If $MicrosoftUpdate
        Else
        {
            Foreach ($objService in $objServiceManager.Services) 
            {
                If($ServiceID)
                {
                    If($objService.ServiceID -eq $ServiceID)
                    {
                        $objSearcher.ServiceID = $ServiceID
                        $objSearcher.ServerSelection = 3
                        $serviceName = $objService.Name
                        Break
                    } #End If $objService.ServiceID -eq $ServiceID
                } #End If $ServiceID
                Else
                {
                    If($objService.IsDefaultAUService -eq $True)
                    {
                        $serviceName = $objService.Name
                        Break
                    } #End If $objService.IsDefaultAUService -eq $True
                } #End Else $ServiceID
            } #End Foreach $objService in $objServiceManager.Services
        } #End Else $MicrosoftUpdate
        Write-Debug "Set source of updates to $serviceName"
        
        Write-Verbose "Connecting to $serviceName server. Please wait..."
        Try
        {
            $search = ""
            
            If($Criteria)
            {
                $search = $Criteria
            } #End If $Criteria
            Else
            {
                If($IsInstalled) 
                {
                    $search = "IsInstalled = 1"
                    Write-Debug "Set pre search criteria: IsInstalled = 1"
                } #End If $IsInstalled
                Else
                {
                    $search = "IsInstalled = 0"    
                    Write-Debug "Set pre search criteria: IsInstalled = 0"
                } #End Else $IsInstalled
                
                If($UpdateType -ne "")
                {
                    Write-Debug "Set pre search criteria: Type = $UpdateType"
                    $search += " and Type = '$UpdateType'"
                } #End If $UpdateType -ne ""
                
                If($UpdateID)
                {
                    Write-Debug "Set pre search criteria: UpdateID = '$([string]::join(", ", $UpdateID))'"
                    $tmp = $search
                    $search = ""
                    $LoopCount = 0
                    Foreach($ID in $UpdateID)
                    {
                        If($LoopCount -gt 0)
                        {
                            $search += " or "
                        } #End If $LoopCount -gt 0
                        If($RevisionNumber)
                        {
                            Write-Debug "Set pre search criteria: RevisionNumber = '$RevisionNumber'"    
                            $search += "($tmp and UpdateID = '$ID' and RevisionNumber = $RevisionNumber)"
                        } #End If $RevisionNumber
                        Else
                        {
                            $search += "($tmp and UpdateID = '$ID')"
                        } #End Else $RevisionNumber
                        $LoopCount++
                    } #End Foreach $ID in $UpdateID
                } #End If $UpdateID

                If($CategoryIDs)
                {
                    Write-Debug "Set pre search criteria: CategoryIDs = '$([string]::join(", ", $CategoryIDs))'"
                    $tmp = $search
                    $search = ""
                    $LoopCount =0
                    Foreach($ID in $CategoryIDs)
                    {
                        If($LoopCount -gt 0)
                        {
                            $search += " or "
                        } #End If $LoopCount -gt 0
                        $search += "($tmp and CategoryIDs contains '$ID')"
                        $LoopCount++
                    } #End Foreach $ID in $CategoryIDs
                } #End If $CategoryIDs
                
                If($IsHidden) 
                {
                    Write-Debug "Set pre search criteria: IsHidden = 1"
                    $search += " and IsHidden = 1"    
                } #End If $IsNotHidden
                ElseIf($WithHidden) 
                {
                    Write-Debug "Set pre search criteria: IsHidden = 1 and IsHidden = 0"
                } #End ElseIf $WithHidden
                Else
                {
                    Write-Debug "Set pre search criteria: IsHidden = 0"
                    $search += " and IsHidden = 0"    
                } #End Else $WithHidden
                
                #Don't know why every update have RebootRequired=false which is not always true
                If($IgnoreRebootRequired) 
                {
                    Write-Debug "Set pre search criteria: RebootRequired = 0"
                    $search += " and RebootRequired = 0"    
                } #End If $IgnoreRebootRequired
            } #End Else $Criteria
            
            Write-Debug "Search criteria is: $search"
            
            If($ShowSearchCriteria)
            {
                Write-Output $search
            } #End If $ShowSearchCriteria
            
            $objResults = $objSearcher.Search($search)
        } #End Try
        Catch
        {
            If($_ -match "HRESULT: 0x80072EE2")
            {
                Write-Warning "Probably you don't have connection to Windows Update server"
            } #End If $_ -match "HRESULT: 0x80072EE2"
            Return
        } #End Catch

        $objCollectionUpdate = New-Object -ComObject "Microsoft.Update.UpdateColl" 
        
        $NumberOfUpdate = 1
        $UpdateCollection = @()
        $UpdatesExtraDataCollection = @{}
        $PreFoundUpdatesToDownload = $objResults.Updates.count
        Write-Verbose "Found [$PreFoundUpdatesToDownload] Updates in pre search criteria"                

        Foreach($Update in $objResults.Updates)
        {    
            $UpdateAccess = $true
            Write-Progress -Activity "Post search updates for $Computer" -Status "[$NumberOfUpdate/$PreFoundUpdatesToDownload] $($Update.Title) $size" -PercentComplete ([int]($NumberOfUpdate/$PreFoundUpdatesToDownload * 100))
            Write-Debug "Set post search criteria: $($Update.Title)"
            
            If($Category -ne "")
            {
                $UpdateCategories = $Update.Categories | Select-Object Name
                Write-Debug "Set post search criteria: Categories = '$([string]::join(", ", $Category))'"    
                Foreach($Cat in $Category)
                {
                    If(!($UpdateCategories -match $Cat))
                    {
                        Write-Debug "UpdateAccess: false"
                        $UpdateAccess = $false
                    } #End If !($UpdateCategories -match $Cat)
                    Else
                    {
                        $UpdateAccess = $true
                        Break
                    } #End Else !($UpdateCategories -match $Cat)
                } #End Foreach $Cat in $Category
            } #End If $Category -ne ""

            If($NotCategory -ne "" -and $UpdateAccess -eq $true)
            {
                $UpdateCategories = $Update.Categories | Select-Object Name
                Write-Debug "Set post search criteria: NotCategories = '$([string]::join(", ", $NotCategory))'"    
                Foreach($Cat in $NotCategory)
                {
                    If($UpdateCategories -match $Cat)
                    {
                        Write-Debug "UpdateAccess: false"
                        $UpdateAccess = $false
                        Break
                    } #End If $UpdateCategories -match $Cat
                } #End Foreach $Cat in $NotCategory
            } #End If $NotCategory -ne "" -and $UpdateAccess -eq $true
            
            If($KBArticleID -ne $null -and $UpdateAccess -eq $true)
            {
                Write-Debug "Set post search criteria: KBArticleIDs = '$([string]::join(", ", $KBArticleID))'"
                If(!($KBArticleID -match $Update.KBArticleIDs -and "" -ne $Update.KBArticleIDs))
                {
                    Write-Debug "UpdateAccess: false"
                    $UpdateAccess = $false
                } #End If !($KBArticleID -match $Update.KBArticleIDs)
            } #End If $KBArticleID -ne $null -and $UpdateAccess -eq $true

            If($NotKBArticleID -ne $null -and $UpdateAccess -eq $true)
            {
                Write-Debug "Set post search criteria: NotKBArticleIDs = '$([string]::join(", ", $NotKBArticleID))'"
                If($NotKBArticleID -match $Update.KBArticleIDs -and "" -ne $Update.KBArticleIDs)
                {
                    Write-Debug "UpdateAccess: false"
                    $UpdateAccess = $false
                } #End If$NotKBArticleID -match $Update.KBArticleIDs -and "" -ne $Update.KBArticleIDs
            } #End If $NotKBArticleID -ne $null -and $UpdateAccess -eq $true
            
            If($Title -and $UpdateAccess -eq $true)
            {
                Write-Debug "Set post search criteria: Title = '$Title'"
                If($Update.Title -notmatch $Title)
                {
                    Write-Debug "UpdateAccess: false"
                    $UpdateAccess = $false
                } #End If $Update.Title -notmatch $Title
            } #End If $Title -and $UpdateAccess -eq $true

            If($NotTitle -and $UpdateAccess -eq $true)
            {
                Write-Debug "Set post search criteria: NotTitle = '$NotTitle'"
                If($Update.Title -match $NotTitle)
                {
                    Write-Debug "UpdateAccess: false"
                    $UpdateAccess = $false
                } #End If $Update.Title -notmatch $NotTitle
            } #End If $NotTitle -and $UpdateAccess -eq $true
            
            If($IgnoreUserInput -and $UpdateAccess -eq $true)
            {
                Write-Debug "Set post search criteria: CanRequestUserInput"
                If($Update.InstallationBehavior.CanRequestUserInput -eq $true)
                {
                    Write-Debug "UpdateAccess: false"
                    $UpdateAccess = $false
                } #End If $Update.InstallationBehavior.CanRequestUserInput -eq $true
            } #End If $IgnoreUserInput -and $UpdateAccess -eq $true

            If($IgnoreRebootRequired -and $UpdateAccess -eq $true) 
            {
                Write-Debug "Set post search criteria: RebootBehavior"
                If($Update.InstallationBehavior.RebootBehavior -ne 0)
                {
                    Write-Debug "UpdateAccess: false"
                    $UpdateAccess = $false
                } #End If $Update.InstallationBehavior.RebootBehavior -ne 0
            } #End If $IgnoreRebootRequired -and $UpdateAccess -eq $true

            If($UpdateAccess -eq $true)
            {
                Write-Debug "Convert size"
                Switch($Update.MaxDownloadSize)
                {
                    {[System.Math]::Round($_/1KB,0) -lt 1024} { $size = [String]([System.Math]::Round($_/1KB,0))+" KB"; break }
                    {[System.Math]::Round($_/1MB,0) -lt 1024} { $size = [String]([System.Math]::Round($_/1MB,0))+" MB"; break }  
                    {[System.Math]::Round($_/1GB,0) -lt 1024} { $size = [String]([System.Math]::Round($_/1GB,0))+" GB"; break }    
                    {[System.Math]::Round($_/1TB,0) -lt 1024} { $size = [String]([System.Math]::Round($_/1TB,0))+" TB"; break }
                    default { $size = $_+"B" }
                } #End Switch
            
                Write-Debug "Convert KBArticleIDs"
                If($Update.KBArticleIDs -ne "")    
                {
                    $KB = "KB"+$Update.KBArticleIDs
                } #End If $Update.KBArticleIDs -ne ""
                Else 
                {
                    $KB = ""
                } #End Else $Update.KBArticleIDs -ne ""
                
                If($ListOnly)
                {
                    $Status = ""
                    If($Update.IsDownloaded)    {$Status += "D"} else {$status += "-"}
                    If($Update.IsInstalled)     {$Status += "I"} else {$status += "-"}
                    If($Update.IsMandatory)     {$Status += "M"} else {$status += "-"}
                    If($Update.IsHidden)        {$Status += "H"} else {$status += "-"}
                    If($Update.IsUninstallable) {$Status += "U"} else {$status += "-"}
                    If($Update.IsBeta)          {$Status += "B"} else {$status += "-"} 
    
                    Add-Member -InputObject $Update -MemberType NoteProperty -Name ComputerName -Value $env:COMPUTERNAME
                    Add-Member -InputObject $Update -MemberType NoteProperty -Name KB -Value $KB
                    Add-Member -InputObject $Update -MemberType NoteProperty -Name Size -Value $size
                    Add-Member -InputObject $Update -MemberType NoteProperty -Name Status -Value $Status
                    Add-Member -InputObject $Update -MemberType NoteProperty -Name X -Value 1
                    
                    $Update.PSTypeNames.Clear()
                    $Update.PSTypeNames.Add('PSWindowsUpdate.WUInstall')
                    $UpdateCollection += $Update
                } #End If $ListOnly
                Else
                {
                    $objCollectionUpdate.Add($Update) | Out-Null
                    $UpdatesExtraDataCollection.Add($Update.Identity.UpdateID,@{KB = $KB; Size = $size})
                } #End Else $ListOnly
            } #End If $UpdateAccess -eq $true
            
            $NumberOfUpdate++
        } #End Foreach $Update in $objResults.Updates
        Write-Progress -Activity "[1/$NumberOfStage] Post search updates" -Status "Completed" -Completed
        
        If($ListOnly)
        {
            $FoundUpdatesToDownload = $UpdateCollection.count
        } #End If $ListOnly
        Else
        {
            $FoundUpdatesToDownload = $objCollectionUpdate.count                
        } #End Else $ListOnly
        Write-Verbose "Found [$FoundUpdatesToDownload] Updates in post search criteria"
        
        If($FoundUpdatesToDownload -eq 0)
        {
            Return
        } #End If $FoundUpdatesToDownload -eq 0
        
        If($ListOnly)
        {
            Write-Debug "Return only list of updates"
            Return $UpdateCollection                
        } #End If $ListOnly

        #################################
        # End STAGE 1: Get updates list #
        #################################
        #endregion
        

        If(!$ListOnly) 
        {
            #region STAGE 2
            #################################
            # Start STAGE 2: Choose updates #
            #################################
            
            Write-Debug "STAGE 2: Choose updates"            
            $NumberOfUpdate = 1
            $logCollection = @()
            
            $objCollectionChoose = New-Object -ComObject "Microsoft.Update.UpdateColl"

            Foreach($Update in $objCollectionUpdate)
            {    
                $size = $UpdatesExtraDataCollection[$Update.Identity.UpdateID].Size
                Write-Progress -Activity "[2/$NumberOfStage] Choose updates" -Status "[$NumberOfUpdate/$FoundUpdatesToDownload] $($Update.Title) $size" -PercentComplete ([int]($NumberOfUpdate/$FoundUpdatesToDownload * 100))
                Write-Debug "Show update to accept: $($Update.Title)"
                
                If($AcceptAll)
                {
                    $Status = "Accepted"

                    If($Update.EulaAccepted -eq 0)
                    { 
                        Write-Debug "Accept Eula"
                        $Update.AcceptEula() 
                    } #End If $Update.EulaAccepted -eq 0
            
                    Write-Debug "Add update to collection"
                    $objCollectionChoose.Add($Update) | Out-Null
                } #End If $AcceptAll
                ElseIf($AutoSelectOnly)  
                {  
                    If($Update.AutoSelectOnWebsites)  
                    {  
                        $Status = "Accepted"  
                        If($Update.EulaAccepted -eq 0)  
                        {  
                            Write-Debug "Accept Eula"  
                            $Update.AcceptEula()  
                        } #End If $Update.EulaAccepted -eq 0
  
                        Write-Debug "Add update to collection"  
                        $objCollectionChoose.Add($Update) | Out-Null  
                    } #End If $Update.AutoSelectOnWebsites
                    Else  
                    {  
                        $Status = "Rejected"  
                    } #End Else $Update.AutoSelectOnWebsites
                } #End ElseIf $AutoSelectOnly
                Else
                {
                    If($pscmdlet.ShouldProcess($Env:COMPUTERNAME,"$($Update.Title)[$size]?")) 
                    {
                        $Status = "Accepted"
                        
                        If($Update.EulaAccepted -eq 0)
                        { 
                            Write-Debug "Accept Eula"
                            $Update.AcceptEula() 
                        } #End If $Update.EulaAccepted -eq 0
                
                        Write-Debug "Add update to collection"
                        $objCollectionChoose.Add($Update) | Out-Null 
                    } #End If $pscmdlet.ShouldProcess($Env:COMPUTERNAME,"$($Update.Title)[$size]?")
                    Else
                    {
                        $Status = "Rejected"
                    } #End Else $pscmdlet.ShouldProcess($Env:COMPUTERNAME,"$($Update.Title)[$size]?")
                } #End Else $AutoSelectOnly
                
                Write-Debug "Add to log collection"
                $log = New-Object PSObject -Property @{
                    Title = $Update.Title
                    KB = $UpdatesExtraDataCollection[$Update.Identity.UpdateID].KB
                    Size = $UpdatesExtraDataCollection[$Update.Identity.UpdateID].Size
                    Status = $Status
                    X = 2
                } #End PSObject Property
                
                $log.PSTypeNames.Clear()
                $log.PSTypeNames.Add('PSWindowsUpdate.WUInstall')
                
                $logCollection += $log
                
                $NumberOfUpdate++
            } #End Foreach $Update in $objCollectionUpdate
            Write-Progress -Activity "[2/$NumberOfStage] Choose updates" -Status "Completed" -Completed
            
            Write-Debug "Show log collection"
            $logCollection
            
            
            $AcceptUpdatesToDownload = $objCollectionChoose.count
            Write-Verbose "Accept [$AcceptUpdatesToDownload] Updates to Download"
            
            If($AcceptUpdatesToDownload -eq 0)
            {
                Return
            } #End If $AcceptUpdatesToDownload -eq 0
                
            ###############################
            # End STAGE 2: Choose updates #
            ###############################
            #endregion
            
            #region STAGE 3
            ###################################
            # Start STAGE 3: Download updates #
            ###################################
            
            Write-Debug "STAGE 3: Download updates"
            $NumberOfUpdate = 1
            $objCollectionDownload = New-Object -ComObject "Microsoft.Update.UpdateColl" 

            Foreach($Update in $objCollectionChoose)
            {
                Write-Progress -Activity "[3/$NumberOfStage] Downloading updates" -Status "[$NumberOfUpdate/$AcceptUpdatesToDownload] $($Update.Title) $size" -PercentComplete ([int]($NumberOfUpdate/$AcceptUpdatesToDownload * 100))
                Write-Debug "Show update to download: $($Update.Title)"
                
                Write-Debug "Send update to download collection"
                $objCollectionTmp = New-Object -ComObject "Microsoft.Update.UpdateColl"
                $objCollectionTmp.Add($Update) | Out-Null
                    
                $Downloader = $objSession.CreateUpdateDownloader() 
                $Downloader.Updates = $objCollectionTmp
                Try
                {
                    Write-Debug "Try download update"
                    $DownloadResult = $Downloader.Download()
                } #End Try
                Catch
                {
                    If($_ -match "HRESULT: 0x80240044")
                    {
                        Write-Warning "Your security policy don't allow a non-administator identity to perform this task"
                    } #End If $_ -match "HRESULT: 0x80240044"
                    
                    Return
                } #End Catch
                
                Write-Debug "Check ResultCode"
                Switch -exact ($DownloadResult.ResultCode)
                {
                    0   { $Status = "NotStarted" }
                    1   { $Status = "InProgress" }
                    2   { $Status = "Downloaded" }
                    3   { $Status = "DownloadedWithErrors" }
                    4   { $Status = "Failed" }
                    5   { $Status = "Aborted" }
                } #End Switch
                
                Write-Debug "Add to log collection"
                $log = New-Object PSObject -Property @{
                    Title = $Update.Title
                    KB = $UpdatesExtraDataCollection[$Update.Identity.UpdateID].KB
                    Size = $UpdatesExtraDataCollection[$Update.Identity.UpdateID].Size
                    Status = $Status
                    X = 3
                } #End PSObject Property
                
                $log.PSTypeNames.Clear()
                $log.PSTypeNames.Add('PSWindowsUpdate.WUInstall')
                
                $log
                
                If($DownloadResult.ResultCode -eq 2)
                {
                    Write-Debug "Downloaded then send update to next stage"
                    $objCollectionDownload.Add($Update) | Out-Null
                } #End If $DownloadResult.ResultCode -eq 2
                
                $NumberOfUpdate++
                
            } #End Foreach $Update in $objCollectionChoose
            Write-Progress -Activity "[3/$NumberOfStage] Downloading updates" -Status "Completed" -Completed

            $ReadyUpdatesToInstall = $objCollectionDownload.count
            Write-Verbose "Downloaded [$ReadyUpdatesToInstall] Updates to Install"
        
            If($ReadyUpdatesToInstall -eq 0)
            {
                Return
            } #End If $ReadyUpdatesToInstall -eq 0
        

            #################################
            # End STAGE 3: Download updates #
            #################################
            #endregion
            
            If(!$DownloadOnly)
            {
                #region STAGE 4
                ##################################
                # Start STAGE 4: Install updates #
                ##################################
                
                Write-Debug "STAGE 4: Install updates"
                $NeedsReboot = $false
                $NumberOfUpdate = 1
                
                #install updates
                Foreach($Update in $objCollectionDownload)
                {   
                    Write-Progress -Activity "[4/$NumberOfStage] Installing updates" -Status "[$NumberOfUpdate/$ReadyUpdatesToInstall] $($Update.Title)" -PercentComplete ([int]($NumberOfUpdate/$ReadyUpdatesToInstall * 100))
                    Write-Debug "Show update to install: $($Update.Title)"
                    
                    Write-Debug "Send update to install collection"
                    $objCollectionTmp = New-Object -ComObject "Microsoft.Update.UpdateColl"
                    $objCollectionTmp.Add($Update) | Out-Null
                    
                    $objInstaller = $objSession.CreateUpdateInstaller()
                    $objInstaller.Updates = $objCollectionTmp
                        
                    Try
                    {
                        Write-Debug "Try install update"
                        $InstallResult = $objInstaller.Install()
                    } #End Try
                    Catch
                    {
                        If($_ -match "HRESULT: 0x80240044")
                        {
                            Write-Warning "Your security policy don't allow a non-administator identity to perform this task"
                        } #End If $_ -match "HRESULT: 0x80240044"
                        
                        Return
                    } #End Catch
                    
                    If(!$NeedsReboot) 
                    { 
                        Write-Debug "Set instalation status RebootRequired"
                        $NeedsReboot = $installResult.RebootRequired 
                    } #End If !$NeedsReboot
                    
                    Switch -exact ($InstallResult.ResultCode)
                    {
                        0   { $Status = "NotStarted"}
                        1   { $Status = "InProgress"}
                        2   { $Status = "Installed"}
                        3   { $Status = "InstalledWithErrors"}
                        4   { $Status = "Failed"}
                        5   { $Status = "Aborted"}
                    } #End Switch
                   
                    Write-Debug "Add to log collection"
                    $log = New-Object PSObject -Property @{
                        Title = $Update.Title
                        KB = $UpdatesExtraDataCollection[$Update.Identity.UpdateID].KB
                        Size = $UpdatesExtraDataCollection[$Update.Identity.UpdateID].Size
                        Status = $Status
                        X = 4
                    } #End PSObject Property
                    
                    $log.PSTypeNames.Clear()
                    $log.PSTypeNames.Add('PSWindowsUpdate.WUInstall')
                    
                    $log
                
                    $NumberOfUpdate++
                } #End Foreach $Update in $objCollectionDownload
                Write-Progress -Activity "[4/$NumberOfStage] Installing updates" -Status "Completed" -Completed
                
                If($NeedsReboot)
                {
                    If($AutoReboot)
                    {
                        Restart-Computer -Force
                    } #End If $AutoReboot
                    ElseIf($IgnoreReboot)
                    {
                        Return "Reboot is required, but do it manually."
                    } #End Else $AutoReboot If $IgnoreReboot
                    Else
                    {
                        $Reboot = Read-Host "Reboot is required. Do it now ? [Y/N]"
                        If($Reboot -eq "Y")
                        {
                            Restart-Computer -Force
                        } #End If $Reboot -eq "Y"
                        
                    } #End Else $IgnoreReboot
                    
                } #End If $NeedsReboot

                ################################
                # End STAGE 4: Install updates #
                ################################
                #endregion
            } #End If !$DownloadOnly
        } #End !$ListOnly
    } #End Process
    
    End{}        
} #In The End :)