Invoke-VMAutologon.ps1

Invoke-VMAutologon.ps1

function Invoke-VMAutologon
{
    [CmdletBinding()]
	param(
        [Parameter(Mandatory=$true,Position=0)]
        [string] $VMName,
        [Parameter(Mandatory=$true)]
        [string] $UserName,
        [string] $DomainName = ".\",
        [Parameter(Mandatory=$true)]
        [string] $Password
    )

    if ([string]::IsNullOrEmpty($Password)) {
    	$Credential = Get-Credential -UserName $UserName
    	if ($PSEdition -eq 'Desktop') {
	        $bstr = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($SecureString)
	        $Password = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($bstr)
	    } else {
	        $Password = ConvertFrom-SecureString -SecureString $SecureString -AsPlainText
	    }
    } else {
	    $SecurePassword = ConvertTo-SecureString $Password -AsPlainText -Force
		$Credential = New-Object System.Management.Automation.PSCredential @($UserName, $SecurePassword)
    }

    $VMSession = New-PSSession -VMName $VMName -Credential $Credential

    Invoke-Command -ScriptBlock { Param($UserName, $DomainName, $Password)
        $WinlogonRegPath = "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\Winlogon"
        New-ItemProperty -Path $WinlogonRegPath -Name AutoAdminLogon -Value 1 -PropertyType DWORD -Force | Out-Null
        New-ItemProperty -Path $WinlogonRegPath -Name ForceAutoLogon -Value 0 -PropertyType DWORD -Force | Out-Null
        New-ItemProperty -Path $WinlogonRegPath -Name DefaultUserName -Value $Username -PropertyType String -Force | Out-Null
        New-ItemProperty -Path $WinlogonRegPath -Name DefaultPassword -Value $Password -PropertyType String -Force | Out-Null

        # Force Winlogon.exe to restart and check for autologon without a reboot
        Remove-Item $(Join-Path $WinlogonRegPath "AutoLogonChecked") -Force
        Get-Process "Winlogon" | Stop-Process -Force
    } -Session $VMSession -ArgumentList @($UserName, $DomainName, $Password)
}