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Determine which Nodes have UAC Enabled with PowerShell

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Wow!  It has been a while since I last blogged.  This has been a very busy year. Between my Navy activities and all the classes that I’m bringing online for clients, I am burning the candle at both ends.

As many of you know, my last day of a PowerShell class is “Project Day”.  One of the projects that I helped out with this week involved determining if UAC was enabled.  Utilizing the template we created in class and a check of the registry, we were able to:
  •         Remote to each client.
  •         Determine if the client was online.
  •         Report back the state of UAC.

I decided to advance the code just a little to make sure everything reports back as an object.  Below is that code.  Wish I had more time to explain it step by step, but I have to keep moving.  I only have 3 weeks to get everything done for PowerShell Conference Europe.




ForEach ($N in (Get-ADComputer -filter *).Name)
{
    $Obj = New-Object -TypeName PSObject -Property @{
        ComputerName = $Null
        UACEnabled = $Null
        Online = $False
    }
    Try
    {
        $Obj.ComputerName = $N
        $Data = Invoke-Command `
                -ComputerName $N `
                -ErrorAction Stop `
                -ScriptBlock {
                    (Get-ItemProperty `
                        -Path HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System `
                        -Name EnableLUA).EnableLUA
                }
        $Obj.Online = $True
        If ($Data = 1) {$Obj.UACEnabled = $True}
        Else {$Obj.UACEnabled = $False}
    }
    Catch {$Online = $False}
    Write-Output $Obj

} 
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