function Invoke-Upgrade([Context] $context)
{
    $null = Import-Module PSWindowsUpdate;
    $null = Install-WindowsUpdate -AcceptAll -IgnoreReboot;

    if ((Get-WURebootStatus).RebootRequired)
    {
        $null = New-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\RunOnce" -Name "PortValhalla" -Value "pwsh `"$($context.EntryPoint)`"" -PropertyType ExpandString;
        exit;
    }
    elseif ((Get-WindowsUpdate).Count -gt 0)
    {
        $null = Invoke-Upgrade $context;
        return;
    }
    else
    {
        return;
    }
}