foreach ($module in @("PSWindowsUpdate"))
{
    if (-not (Get-Module $module))
    {
        Install-Module -AcceptLicense -Force "$module";
    }
}

Import-Module PSWindowsUpdate;
Import-Module ScheduledTasks;

$installerPath = "$PSScriptRoot/Manage.ps1";
$setupPath = "$($MyInvocation.MyCommand.Path)";

Install-WindowsUpdate -AcceptAll -IgnoreReboot;

if ((Get-WindowsUpdate).Count -gt 0)
{
    $nextScript = "$setupPath";
}
else
{
    $nextScript = "$installerPath";
}

if ((Get-WURebootStatus).RebootRequired)
{
    New-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\RunOnce" -Name "PortValhalla" -Value "pwsh `"$nextScript`"" -PropertyType ExpandString;
}
else
{
    . "$nextScript";
}