I have this following script so I can force the download and installations of Windows updates.
I’m improving it so that after the installations of updates it gives me a pop-up message saying in 24h the computer will restart and 10 minutes before restarting gives another message saying the computer will restart in 10 min.

The question is I can’t do the script to give the 10 min message before restarting.

Can you help me with this issue please?

This is a part of my script just to show the notifications.

function Show-BalloonTip {
    param (
        [string]$Title,
        [string]$Message
    )
    
    $notification = New-Object -ComObject WScript.Shell
    $notification.Popup($Message, 10, $Title, 0x1)
}

function Schedule-Tasks {
    # Define o atraso para 24 horas e o aviso para 23 horas e 50 minutos
    $RebootDelayMinutes = 24 * 60
    $WarningDelayMinutes = $RebootDelayMinutes - 10

    # Calcula os horários de início com base nos atrasos
    $rebootTime = (Get-Date).AddMinutes($RebootDelayMinutes).ToString("HH:mm")
    $warningTime = (Get-Date).AddMinutes($WarningDelayMinutes).ToString("HH:mm")

    # Cria a tarefa agendada para o reinício
    schtasks /create /tn "ScheduledReboot" /tr "C:WindowsSystem32WindowsPowerShellv1.0powershell.exe -Command `"shutdown /r /f`"" /sc once /st $rebootTime /ru SYSTEM /f

    # Cria um script temporário para a mensagem de aviso
    $scriptPath = "C:ProgramDataRebootWarning.ps1"
    $scriptContent = @"
Add-Type -AssemblyName PresentationFramework
[System.Windows.MessageBox]::Show('The system will reboot in 10 minutes.', 'Reboot Warning')
"@
    Set-Content -Path $scriptPath -Value $scriptContent

    # Cria a tarefa agendada para a mensagem de aviso
    $escapedScriptPath = $scriptPath -replace ' ', '` '
    schtasks /create /tn "RebootWarning" /tr "powershell.exe -File `"$escapedScriptPath`"" /sc once /st $warningTime /ru SYSTEM /f
}




if (!$ListOnly -and !$NoAutoReboot) {
    Schedule-Tasks
    Show-BalloonTip -Title "Windows Updates" -Message "Updates installed. The system will reboot in 30 minutes. A warning will be displayed 10 minutes before the reboot."
}

I’ve tried everything i remember to do.
Bu my knowledge it’s a little bit limited.