diff --git a/src/Api.ps1 b/src/Api.ps1
index 05ae7fa..622edb2 100644
--- a/src/Api.ps1
+++ b/src/Api.ps1
@@ -1622,7 +1622,7 @@ function Invoke-DeviceActionEndpoint {
     if ($err) { return $err }
 
     $action = [string]$Body.action
-    $allowed = @('syncDevice','rebootNow','remoteLock','collectDiagnostics','rotateBitLockerKeys','retire','autopilotReset')
+    $allowed = @('syncDevice','rebootNow','remoteLock','collectDiagnostics','rotateBitLockerKeys','retire','autopilotReset','wipe')
     if ($action -notin $allowed) {
         return @{ statusCode = 400; error = "Unbekannte Aktion: $action" }
     }
@@ -1630,6 +1630,10 @@ function Invoke-DeviceActionEndpoint {
     if ($action -eq 'autopilotReset') {
         $uri = "https://graph.microsoft.com/v1.0/deviceManagement/managedDevices/$DeviceId/wipe"
         $bodyJson = '{"keepEnrollmentData":true,"keepUserData":false}'
+    } elseif ($action -eq 'wipe') {
+        $keepUserData = if ($Body.keepUserData) { 'true' } else { 'false' }
+        $uri = "https://graph.microsoft.com/v1.0/deviceManagement/managedDevices/$DeviceId/wipe"
+        $bodyJson = "{""keepEnrollmentData"":false,""keepUserData"":$keepUserData}"
     } else {
         $uri = "https://graph.microsoft.com/v1.0/deviceManagement/managedDevices/$DeviceId/$action"
         $bodyJson = '{}'
diff --git a/www/app.js b/www/app.js
index 2612265..2962669 100644
--- a/www/app.js
+++ b/www/app.js
@@ -5395,6 +5395,25 @@ function devRenderDetail(d) {
   if (autopilotBtn) autopilotBtn.style.display = isWin ? '' : 'none';
 }
 
+// Wipe-Dialog (Promise: true=keepUserData, false=löschen, null=abgebrochen)
+function devWipeDialog(deviceName) {
+  return new Promise(resolve => {
+    document.getElementById('wipeDeviceName').textContent = deviceName;
+    document.getElementById('wipeKeepUserData').checked = false;
+    const backdrop = document.getElementById('wipeModalBackdrop');
+    backdrop.classList.remove('hidden');
+
+    const close = (result) => {
+      backdrop.classList.add('hidden');
+      resolve(result);
+    };
+    document.getElementById('wipeCancel').onclick    = () => close(null);
+    document.getElementById('wipeModalClose').onclick = () => close(null);
+    document.getElementById('wipeConfirm').onclick   = () => close(document.getElementById('wipeKeepUserData').checked);
+    backdrop.onclick = (e) => { if (e.target === backdrop) close(null); };
+  });
+}
+
 // Aktion ausführen
 document.getElementById('devActions')?.addEventListener('click', async (e) => {
   const btn = e.target.closest('.dev-action-btn');
@@ -5409,10 +5428,38 @@ document.getElementById('devActions')?.addEventListener('click', async (e) => {
     collectDiagnostics: 'Diagnose sammeln',
     rotateBitLockerKeys: 'BitLocker-Schlüssel rotieren',
     autopilotReset: 'Autopilot Reset',
-    retire: 'Retire (MDM entfernen)'
+    retire: 'Retire (MDM entfernen)',
+    wipe: 'Wipe'
   };
-  const isDangerous = action === 'retire' || action === 'autopilotReset';
   const devName = DevState.selected.DeviceName || DevState.selected.Id;
+
+  // Wipe: eigener Dialog mit Benutzerdaten-Option
+  if (action === 'wipe') {
+    const keepUserData = await devWipeDialog(devName);
+    if (keepUserData === null) return;
+    btn.disabled = true;
+    const origText2 = btn.textContent.trim();
+    btn.textContent = '…';
+    try {
+      await api(`/api/devices/${encodeURIComponent(DevState.selected.Id)}/action`, {
+        method: 'POST',
+        body: JSON.stringify({ action: 'wipe', keepUserData })
+      });
+      toast(`Wipe gesendet${keepUserData ? ' (Benutzerdaten behalten)' : ''}`, 'ok');
+      DevState.items = DevState.items.filter(d => d.Id !== DevState.selected.Id);
+      DevState.selected = null;
+      document.getElementById('devDetail').classList.add('hidden');
+      devApplyFilters();
+    } catch (e) {
+      toast(`Fehler bei Wipe: ${e}`, 'error');
+    } finally {
+      btn.disabled = false;
+      btn.textContent = origText2;
+    }
+    return;
+  }
+
+  const isDangerous = action === 'retire' || action === 'autopilotReset';
   const dangerMsg = {
     retire: `ACHTUNG: "Retire" auf "${devName}" ausführen?\n\nDas MDM-Profil wird entfernt — Gerät wird nicht mehr verwaltet.`,
     autopilotReset: `ACHTUNG: "Autopilot Reset" auf "${devName}" ausführen?\n\nDas Gerät wird auf OOBE zurückgesetzt. Enrollment-Daten bleiben erhalten, Benutzerdaten werden gelöscht.`
@@ -5431,7 +5478,6 @@ document.getElementById('devActions')?.addEventListener('click', async (e) => {
     });
     toast(`${labels[action]}: Aktion wurde gesendet`, 'ok');
     if (action === 'retire') {
-      // Gerät aus Liste entfernen
       DevState.items = DevState.items.filter(d => d.Id !== DevState.selected.Id);
       DevState.selected = null;
       document.getElementById('devDetail').classList.add('hidden');
diff --git a/www/index.html b/www/index.html
index 27c5780..1c3d7bb 100644
--- a/www/index.html
+++ b/www/index.html
@@ -548,12 +548,37 @@
             <svg width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><polyline points="3 6 5 6 21 6"/><path d="M19 6l-1 14H6L5 6"/><path d="M10 11v6"/><path d="M14 11v6"/><path d="M9 6V4h6v2"/></svg>
             Retire
           </button>
+          <button class="btn btn-danger btn-sm dev-action-btn" data-action="wipe" title="Gerät vollständig zurücksetzen (Wipe)">
+            <svg width="13" height="13" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="10"/><line x1="4.93" y1="4.93" x2="19.07" y2="19.07"/></svg>
+            Wipe
+          </button>
         </div>
       </div>
     </div>
   </div>
 </section>
 
+<!-- MODAL: Wipe -->
+<div class="modal-backdrop hidden" id="wipeModalBackdrop">
+  <div class="modal" style="max-width:420px;">
+    <div class="modal-header">
+      <span class="modal-title">Gerät zurücksetzen (Wipe)</span>
+      <button class="modal-close" id="wipeModalClose">&times;</button>
+    </div>
+    <div class="modal-body" style="padding:16px 20px;">
+      <p style="margin:0 0 12px;font-size:13.5px;">ACHTUNG: Das Gerät <strong id="wipeDeviceName"></strong> wird vollständig zurückgesetzt und aus dem Enrollment entfernt.</p>
+      <label style="display:flex;align-items:center;gap:8px;font-size:13px;cursor:pointer;">
+        <input type="checkbox" id="wipeKeepUserData">
+        Benutzerdaten behalten (nur bei Windows Fresh Start)
+      </label>
+    </div>
+    <div class="modal-footer">
+      <button class="btn btn-secondary" id="wipeCancel">Abbrechen</button>
+      <button class="btn btn-danger" id="wipeConfirm">Jetzt zurücksetzen</button>
+    </div>
+  </div>
+</div>
+
 <!-- TOAST CONTAINER -->
 <div id="toasts" class="toasts"></div>
 
diff --git a/www/styles.css b/www/styles.css
index facd430..e2b13b9 100644
--- a/www/styles.css
+++ b/www/styles.css
@@ -5214,7 +5214,7 @@ body.read-only .app-row {
   border-bottom: 1px solid var(--hairline-soft);
   flex-shrink: 0;
 }
-.dev-toolbar .search-wrap { flex: 1; max-width: 380px; }
+.dev-toolbar .search-wrap { flex: 1; max-width: 600px; }
 .input-select {
   padding: 5px 8px;
   border: 1px solid var(--hairline);