diff --git a/install_newt-msp-site-win_v2.sh b/install_newt-msp-site-win_v2.sh
index abfd82d..b73441e 100644
--- a/install_newt-msp-site-win_v2.sh
+++ b/install_newt-msp-site-win_v2.sh
@@ -1,70 +1,143 @@
-# TLS 1.2 erzwingen (Wichtig für GitHub/Downloads)
+<#
+.SYNOPSIS
+    Windows-Pendant zum Newt-Installer (Bash).
+    Unterstützt: --install, --update, --reinstall, --uninstall
+#>
+
+# 1. TLS 1.2 erzwingen (Wichtig für GitHub Downloads auf Windows Server)
 [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
 
+# 2. Variablen definieren
 $Repo = "fosrl/newt"
 $InstallDir = "C:\Program Files\me-msp-newt"
 $ServiceName = "MAIEREDV-Managed-Site-Client"
 $Symlink = "$InstallDir\newt_latest.exe"
+$TaskName = "Newt-Updater"
 
+# Helfer für bunte Ausgaben
+function Write-Info($msg) { Write-Host "[INFO] $msg" -ForegroundColor Green }
+function Write-Warn($msg) { Write-Host "[WARN] $msg" -ForegroundColor Yellow }
+function Write-ErrorMsg($msg) { Write-Host "[ERROR] $msg" -ForegroundColor Red; exit 1 }
+
+# 3. Neueste Version von GitHub holen (API)
 function Get-LatestVersion {
     try {
         $url = "https://api.github.com/repos/$Repo/releases/latest"
-        $json = Invoke-RestMethod -Uri $url -ErrorAction Stop
+        $json = Invoke-RestMethod -Uri $url -UseBasicParsing
         return $json.tag_name.TrimStart('v')
     } catch {
-        Write-Error "Fehler beim Abrufen der Version: $_"
-        exit 1
+        Write-ErrorMsg "Konnte Version nicht von GitHub abrufen."
     }
 }
 
+# 4. Download via BITS (Server-sicher)
 function Download-Newt {
     param($Version)
     $Arch = if ([Environment]::Is64BitOperatingSystem) { "newt_windows_amd64.exe" } else { "newt_windows_386.exe" }
     $Url = "https://github.com/$Repo/releases/download/v$Version/$Arch"
     $Target = "$InstallDir\newt_$Version.exe"
 
-    if (!(Test-Path $InstallDir)) { 
-        New-Item -ItemType Directory -Path $InstallDir -Force | Out-Null 
-    }
+    if (!(Test-Path $InstallDir)) { New-Item -ItemType Directory -Path $InstallDir -Force | Out-Null }
 
-    Write-Host "⬇️ Downloading $Url ..." -ForegroundColor Cyan
+    Write-Info "⬇️ Downloading $Url via BITS..."
     try {
-        Invoke-WebRequest -Uri $Url -OutFile $Target -ErrorAction Stop
-        if (Test-Path $Target) {
-            Copy-Item -Path $Target -Destination $Symlink -Force
-            Write-Host "✅ Installiert: newt $Version" -ForegroundColor Green
-        }
+        Start-BitsTransfer -Source $Url -Destination $Target -ErrorAction Stop
+        Copy-Item -Path $Target -Destination $Symlink -Force
+        Write-Info "✅ Installiert: newt $Version unter $Target"
     } catch {
-        Write-Error "Download fehlgeschlagen: $_"
-        exit 1
+        Write-ErrorMsg "Download fehlgeschlagen: $_"
     }
 }
 
+# 5. Dienst erstellen (Nativ mit PowerShell-Wrapper)
 function Setup-Service {
-    # Abfrage nur, wenn Dienst noch nicht existiert
-    if (!(Get-Service $ServiceName -ErrorAction SilentlyContinue)) {
-        $PangolinID = Read-Host "🆔 Pangolin ID"
-        $PangolinSecret = Read-Host "🔑 Secret"
-        $PangolinEndpoint = Read-Host "🌐 Endpoint (z.B. https://...)"
+    $PangolinID = Read-Host "🆔 Bitte Pangolin ID eingeben"
+    $PangolinSecret = Read-Host "🔑 Bitte Secret eingeben"
+    $PangolinEndpoint = Read-Host "🌐 Bitte Endpoint eingeben (z.B. https://pangolin.domain.com)"
 
-        $ArgList = "--id $PangolinID --secret $PangolinSecret --endpoint $PangolinEndpoint"
-        
-        # Nativer Windows Dienst (PowerShell Wrapper um Timeouts zu vermeiden)
-        New-Service -Name $ServiceName `
-                    -BinaryPathName "powershell.exe -WindowStyle Hidden -Command & '$Symlink' $ArgList" `
-                    -DisplayName "MAIEREDV Managed Site Client" `
-                    -Description "Managed Newt Client by MAIEREDV" `
-                    -StartupType Automatic
-        
-        Start-Service $ServiceName
-        Write-Host "🛠️ Dienst $ServiceName wurde erstellt und gestartet." -ForegroundColor Green
+    $ArgList = "--id $PangolinID --secret $PangolinSecret --endpoint $PangolinEndpoint"
+    
+    # Da newt.exe kein nativer Windows-Service ist, nutzen wir einen PowerShell-Wrapper
+    # Dieser verhindert den "Dienst antwortete nicht rechtzeitig" Fehler.
+    $BinaryPath = "powershell.exe -WindowStyle Hidden -Command `"$Symlink $ArgList`""
+
+    if (Get-Service $ServiceName -ErrorAction SilentlyContinue) {
+        Write-Warn "Dienst existiert bereits. Aktualisiere Konfiguration..."
+        Stop-Service $ServiceName -Force -ErrorAction SilentlyContinue
+        # Set-Service kann den BinaryPath nicht direkt ändern, daher sc.exe (nativ)
+        & sc.exe config $ServiceName binPath= $BinaryPath
     } else {
-        Restart-Service $ServiceName
-        Write-Host "🔄 Dienst neu gestartet." -ForegroundColor Yellow
+        New-Service -Name $ServiceName `
+                    -BinaryPathName $BinaryPath `
+                    -DisplayName "MAIEREDV Managed Site Client" `
+                    -StartupType Automatic
     }
+    
+    Start-Service $ServiceName
+    Write-Info "🛠️ Dienst $ServiceName gestartet."
 }
 
-# Haupt-Logik (Beispiel für --install)
-$Latest = Get-LatestVersion
-Download-Newt $Latest
-Setup-Service
\ No newline at end of file
+# 6. Täglicher Update-Task (Pendant zum systemd timer)
+function Setup-UpdateTask {
+    if (Get-ScheduledTask -TaskName $TaskName -ErrorAction SilentlyContinue) {
+        Write-Info "⏳ Update-Task existiert bereits."
+        return
+    }
+
+    $ScriptPath = $MyInvocation.MyCommand.Path
+    # Falls als One-Liner ausgeführt, hier festen Pfad oder URL eintragen:
+    $ActionCommand = "powershell.exe -NoProfile -ExecutionPolicy Bypass -Command `"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; iex ((New-Object System.Net.WebClient).DownloadString('DEINE_GITEA_URL_ZUM_SCRIPT')) -mode update`""
+    
+    $Action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument $ActionCommand
+    $Trigger = New-ScheduledTaskTrigger -Daily -At 3am
+    
+    Register-ScheduledTask -Action $Action -Trigger $Trigger -TaskName $TaskName -User "SYSTEM" -Force | Out-Null
+    Write-Info "✅ Täglicher Update-Task (03:00 Uhr) erstellt."
+}
+
+# 7. Modi
+function Mode-Install {
+    $v = Get-LatestVersion
+    if (Test-Path "$InstallDir\newt_$v.exe") {
+        Write-Warn "⚠️ Version $v ist bereits installiert. Nutze --reinstall."
+        Setup-UpdateTask
+        return
+    }
+    Download-Newt $v
+    Setup-Service
+    Setup-UpdateTask
+    Write-Info "🚀 Installation abgeschlossen!"
+}
+
+function Mode-Update {
+    $v = Get-LatestVersion
+    if (Test-Path "$InstallDir\newt_$v.exe") {
+        Write-Info "✅ Version $v ist aktuell. Nichts zu tun."
+        return
+    }
+    Download-Newt $v
+    Restart-Service $ServiceName
+    Write-Info "🚀 Update auf $v abgeschlossen!"
+}
+
+function Mode-Uninstall {
+    Write-Warn "⚠️ Deinstalliere Newt..."
+    if (Get-Service $ServiceName -ErrorAction SilentlyContinue) {
+        Stop-Service $ServiceName -Force
+        $service = Get-CimInstance Win32_Service -Filter "Name='$ServiceName'"
+        $service | Remove-CimInstance
+    }
+    Unregister-ScheduledTask -TaskName $TaskName -Confirm:$false -ErrorAction SilentlyContinue
+    Write-Info "🧹 Dienst und Task entfernt. Ordner $InstallDir bitte manuell löschen falls gewünscht."
+}
+
+# 8. Main Logic
+param([string]$mode = "install")
+
+switch ($mode) {
+    "install"   { Mode-Install }
+    "update"    { Mode-Update }
+    "reinstall" { Download-Newt (Get-LatestVersion); Setup-Service; Setup-UpdateTask }
+    "uninstall" { Mode-Uninstall }
+    default     { Write-ErrorMsg "Unbekannter Parameter: $mode (Nutze install, update, reinstall, uninstall)" }
+}
\ No newline at end of file