diff --git a/README.md b/README.md
index 53db327..4460b8c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 # AeroMC
 
-**Ein instanz-basierter Minecraft-Launcher für Windows**
+**Ein instanz-basierter Minecraft-Launcher für Windows – à la MultiMC / Prism.**
 
 Verwalte beliebig viele isolierte Minecraft-Instanzen mit eigener Version, eigenen Mods und eigenem Java – lade Mods per Ein-Klick von Modrinth, melde dich mit deinem Microsoft-Konto an und spiele.
 
diff --git a/package.json b/package.json
index 1026701..a90983d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "aeromc",
-  "version": "0.33.1",
+  "version": "0.37.1",
   "description": "AeroMC – Instanz-basierter Minecraft-Launcher (à la MultiMC/Prism)",
   "main": "src/main.js",
   "author": "AeroMC",
diff --git a/src/bedrock.js b/src/bedrock.js
new file mode 100644
index 0000000..6939aa6
--- /dev/null
+++ b/src/bedrock.js
@@ -0,0 +1,180 @@
+'use strict';
+
+/*
+ * bedrock.js – Unterstützung für Minecraft Bedrock (Windows-Store-App)
+ * --------------------------------------------------------------------
+ * Bedrock ist keine Java-Anwendung, sondern eine UWP-App. Der Launcher kann
+ * sie daher nicht herunterladen oder in Instanzen aufteilen – wohl aber
+ * starten und die Spieldaten (Welten, Add-ons, Pakete, Bildschirmfotos)
+ * verwalten. Die Installation selbst bleibt Sache des Microsoft Store.
+ */
+
+const fs = require('fs');
+const path = require('path');
+const { execFile, spawn } = require('child_process');
+
+const PKG_FAMILY = 'Microsoft.MinecraftUWP_8wekyb3d8bbwe';
+const APP_ID = PKG_FAMILY + '!App';
+
+function comMojangDir() {
+  return path.join(process.env.LOCALAPPDATA || '', 'Packages', PKG_FAMILY,
+    'LocalState', 'games', 'com.mojang');
+}
+
+// ---------------------------------------------------------------------------
+// Erkennung
+// ---------------------------------------------------------------------------
+
+function runPwsh(cmd) {
+  return new Promise((resolve) => {
+    execFile('powershell', ['-NoProfile', '-NonInteractive', '-Command', cmd],
+      { windowsHide: true, timeout: 15000 },
+      (err, stdout) => resolve(err ? '' : String(stdout || '').trim()));
+  });
+}
+
+async function detect() {
+  const dir = comMojangDir();
+  const version = await runPwsh(
+    "(Get-AppxPackage -Name 'Microsoft.MinecraftUWP' -ErrorAction SilentlyContinue).Version");
+  const installed = !!version;
+  return {
+    installed,
+    version: version || null,
+    dataDir: fs.existsSync(dir) ? dir : null,
+  };
+}
+
+// ---------------------------------------------------------------------------
+// Start
+// ---------------------------------------------------------------------------
+
+/*
+ * Startet Bedrock direkt.
+ * Wichtig: Der AppsFolder-Pfad darf NICHT in Anführungszeichen stehen – sonst
+ * öffnet der Explorer nur ein Ordnerfenster. Daher windowsVerbatimArguments.
+ */
+function launch() {
+  const target = 'shell:appsFolder\\' + APP_ID;
+  const versuche = [
+    // 1) genau der Aufruf, der sich unter Windows als zuverlässig erwiesen hat
+    ['powershell', ['-NoProfile', '-WindowStyle', 'Hidden', '-Command',
+      `Start-Process explorer.exe -ArgumentList '${target}'`], {}],
+    // 2) explorer direkt, ohne zusätzliche Anführungszeichen
+    ['explorer.exe', [target], { windowsVerbatimArguments: true }],
+    // 3) über die Eingabeaufforderung
+    ['cmd', ['/c', 'start', '', target], { windowsVerbatimArguments: true }],
+  ];
+  for (const [cmd, args, extra] of versuche) {
+    try {
+      const p = spawn(cmd, args, Object.assign({ detached: true, stdio: 'ignore', windowsHide: true }, extra));
+      p.unref();
+      return { ok: true, method: cmd };
+    } catch { /* nächsten Weg versuchen */ }
+  }
+  return { ok: false, message: 'Bedrock konnte nicht gestartet werden.' };
+}
+
+// ---------------------------------------------------------------------------
+// Welten / Pakete / Bildschirmfotos
+// ---------------------------------------------------------------------------
+
+function readLevelName(worldDir) {
+  // levelname.txt enthält den im Spiel angezeigten Namen
+  try {
+    const p = path.join(worldDir, 'levelname.txt');
+    if (fs.existsSync(p)) return fs.readFileSync(p, 'utf8').trim();
+  } catch { /* Ordnername verwenden */ }
+  return path.basename(worldDir);
+}
+
+function dirSize(dir, depth = 3) {
+  let total = 0;
+  if (depth < 0) return 0;
+  let entries;
+  try { entries = fs.readdirSync(dir, { withFileTypes: true }); } catch { return 0; }
+  for (const e of entries) {
+    const p = path.join(dir, e.name);
+    try {
+      if (e.isDirectory()) total += dirSize(p, depth - 1);
+      else total += fs.statSync(p).size;
+    } catch { /* überspringen */ }
+  }
+  return total;
+}
+
+function listWorlds() {
+  const base = path.join(comMojangDir(), 'minecraftWorlds');
+  if (!fs.existsSync(base)) return [];
+  return fs.readdirSync(base, { withFileTypes: true })
+    .filter((e) => e.isDirectory())
+    .map((e) => {
+      const dir = path.join(base, e.name);
+      let modified = null;
+      try { modified = fs.statSync(dir).mtime.toISOString(); } catch { /* egal */ }
+      return { id: e.name, name: readLevelName(dir), dir, modified, bytes: dirSize(dir) };
+    })
+    .sort((a, b) => String(b.modified).localeCompare(String(a.modified)));
+}
+
+// Ordnerarten, die verwaltet werden können
+const FOLDERS = {
+  worlds: 'minecraftWorlds',
+  resource_packs: 'resource_packs',
+  behavior_packs: 'behavior_packs',
+  skin_packs: 'skin_packs',
+  screenshots: 'Screenshots',
+};
+
+function listFolder(kind) {
+  const sub = FOLDERS[kind];
+  if (!sub) return [];
+  const base = path.join(comMojangDir(), sub);
+  if (!fs.existsSync(base)) return [];
+  return fs.readdirSync(base, { withFileTypes: true })
+    .filter((e) => !e.name.startsWith('.'))
+    .map((e) => {
+      const p = path.join(base, e.name);
+      let bytes = 0, modified = null;
+      try {
+        const st = fs.statSync(p);
+        modified = st.mtime.toISOString();
+        bytes = e.isDirectory() ? dirSize(p, 2) : st.size;
+      } catch { /* egal */ }
+      return { name: e.name, isDir: e.isDirectory(), path: p, bytes, modified };
+    });
+}
+
+function folderPath(kind) {
+  const sub = FOLDERS[kind];
+  return sub ? path.join(comMojangDir(), sub) : null;
+}
+
+function removeEntry(kind, name) {
+  const base = folderPath(kind);
+  if (!base) return false;
+  const target = path.join(base, name);
+  if (!target.startsWith(base + path.sep)) return false;   // Pfad-Ausbruch verhindern
+  if (fs.existsSync(target)) fs.rmSync(target, { recursive: true, force: true });
+  return true;
+}
+
+/*
+ * Add-on installieren: .mcpack/.mcaddon/.mcworld sind ZIP-Dateien.
+ * Der Doppelklick-Weg über die Shell ist der zuverlässigste, weil Minecraft
+ * die Pakete selbst einsortiert (inkl. Abhängigkeiten).
+ */
+function installAddon(filePath) {
+  if (!fs.existsSync(filePath)) return { ok: false, message: 'Datei nicht gefunden.' };
+  if (!/\.(mcpack|mcaddon|mcworld|mctemplate)$/i.test(filePath)) {
+    return { ok: false, message: 'Nur .mcpack, .mcaddon, .mcworld oder .mctemplate möglich.' };
+  }
+  const child = spawn('cmd', ['/c', 'start', '', filePath], { detached: true, stdio: 'ignore' });
+  child.unref();
+  return { ok: true };
+}
+
+module.exports = {
+  detect, launch, listWorlds, listFolder, folderPath, removeEntry, installAddon,
+  comMojangDir, FOLDERS,
+};
diff --git a/src/forge.js b/src/forge.js
index 3e44623..7c5fb15 100644
--- a/src/forge.js
+++ b/src/forge.js
@@ -113,6 +113,20 @@ async function installForge(opts) {
   const libDir = path.join(sharedDir, 'libraries');
   const java = javaPath && javaPath.trim() ? javaPath : 'java';
 
+  // Bereits installiert? Dann Prozessoren überspringen (spart ~30 s pro Start)
+  const markName = `${loader}-${mcVersion}-${loaderVersion}.installed`;
+  const markPath = path.join(sharedDir, 'versions', markName);
+  if (fs.existsSync(markPath)) {
+    try {
+      const cachedId = fs.readFileSync(markPath, 'utf8').trim();
+      const vjFile = path.join(sharedDir, 'versions', cachedId, cachedId + '.json');
+      if (fs.existsSync(vjFile)) {
+        onProgress({ phase: 'loader', detail: `${loader} ${loaderVersion} bereits installiert` });
+        return JSON.parse(fs.readFileSync(vjFile, 'utf8'));
+      }
+    } catch { /* Merker unbrauchbar -> neu installieren */ }
+  }
+
   onProgress({ phase: 'loader', detail: `${loader} ${loaderVersion} – Installer laden …` });
   const buf = await fetchBuffer(installerUrl(loader, mcVersion, loaderVersion));
   const zip = readZipIndex(buf);
@@ -226,6 +240,9 @@ async function installForge(opts) {
     }
   }
 
+  // Installation als abgeschlossen vermerken
+  try { fs.writeFileSync(markPath, versionJson.id); } catch { /* egal */ }
+
   return versionJson;
 }
 
diff --git a/src/index.html b/src/index.html
index 1835bad..50b9c6c 100644
--- a/src/index.html
+++ b/src/index.html
@@ -15,6 +15,7 @@
     <button id="btn-modpack" class="tbtn" data-ic="package" title="Modrinth-Modpack (.mrpack)">Modpack</button>
     <button id="btn-open-dir" class="tbtn" data-ic="folder" title="Ordner öffnen">Ordner</button>
     <span class="tbsep"></span>
+    <button id="btn-bedrock" class="tbtn" data-ic="blocks" title="Minecraft Bedrock (Windows-Ausgabe)">Bedrock</button>
     <button id="btn-console" class="tbtn" data-ic="terminal" title="Konsole / Log">Konsole</button>
     <button id="btn-skin" class="tbtn" data-ic="user" title="Skin-Hintergrund ein/aus">Skin</button>
     <span class="tbgrow"></span>
@@ -213,6 +214,12 @@
               <small class="hint">Hier werden alle Instanzen als Unterordner (mit ihrem Namen) gespeichert.</small>
             </label>
 
+            <label class="field">
+              <span>Instanzen übernehmen</span>
+              <button id="btn-mmc" class="btn">Aus MultiMC importieren…</button>
+              <small class="hint">Übernimmt Instanzen samt Version, Loader, Gruppe und Spieldaten – du gibst nur den MultiMC-Ordner an.</small>
+            </label>
+
             <label class="field">
               <span>Instanzen sortieren</span>
               <select id="s-sortby">
@@ -225,6 +232,11 @@
               <input id="s-iso3d" type="checkbox" /> <span>Block-Symbole räumlich darstellen (3D)</span>
             </label>
 
+            <label class="checkbox-field">
+              <input id="s-bedrock" type="checkbox" /> <span>Bedrock-Bereich anzeigen</span>
+            </label>
+            <small id="s-bedrock-hint" class="hint">Wird automatisch ausgeblendet, wenn Bedrock nicht installiert ist.</small>
+
             <label class="field">
               <span>Skin-Hintergrund <small class="opt">(optional)</small></span>
               <select id="s-bgskin"><option value="">Aus</option></select>
@@ -344,8 +356,11 @@
 
           <div id="pane-accounts" class="spane hidden">
             <h4>Konten</h4>
-            <p class="hint">Microsoft-Konten verwaltest du über den Konten-Button in der Toolbar.</p>
-            <button id="s-open-accounts" class="btn">Konten öffnen</button>
+            <div id="s-accounts" class="account-list"></div>
+            <div class="path-row">
+              <button id="s-add-account" class="btn btn-primary">＋ Konto hinzufügen</button>
+              <button id="s-open-accounts" class="btn">Verwaltung öffnen</button>
+            </div>
           </div>
 
           <div id="pane-info" class="spane hidden">
@@ -574,6 +589,88 @@
     </div>
   </div>
 
+  <!-- ===================== Dialog: MultiMC-Import ===================== -->
+  <div id="modal-mmc" class="modal hidden">
+    <div class="modal-card modal-lg">
+      <div class="modal-head">
+        <h3>Instanzen aus MultiMC übernehmen</h3>
+        <button class="modal-close" data-close>✕</button>
+      </div>
+      <div class="modal-body">
+        <label class="field">
+          <span>MultiMC-Ordner</span>
+          <div class="path-row">
+            <input id="mmc-path" type="text" placeholder="z. B. E:\Minecraft\MultiMC" />
+            <button id="mmc-pick" class="btn">Wählen…</button>
+            <button id="mmc-scan" class="btn btn-primary">Suchen</button>
+          </div>
+          <small id="mmc-status" class="hint">Gib den Ordner an, in dem MultiMC.exe liegt.</small>
+        </label>
+
+        <div id="mmc-result" class="hidden">
+          <div class="mmc-bar">
+            <label class="checkbox-field" style="margin:0">
+              <input id="mmc-all" type="checkbox" checked /> <span>Alle auswählen</span>
+            </label>
+            <label class="checkbox-field" style="margin:0">
+              <input id="mmc-copy" type="checkbox" checked /> <span>Spieldaten mitkopieren (Welten, Mods, Konfiguration)</span>
+            </label>
+          </div>
+          <div id="mmc-list" class="mods-list"></div>
+        </div>
+      </div>
+      <div class="modal-foot">
+        <div id="mmc-progress" class="hint"></div>
+        <div class="spacer"></div>
+        <button class="btn" data-close>Abbrechen</button>
+        <button id="mmc-do" class="btn btn-primary" disabled>Übernehmen</button>
+      </div>
+    </div>
+  </div>
+
+  <!-- ===================== Dialog: Bedrock ===================== -->
+  <div id="modal-bedrock" class="modal hidden">
+    <div class="modal-card modal-lg">
+      <div class="modal-head">
+        <div class="detail-head">
+          <span class="detail-icon">🧱</span>
+          <div>
+            <h3>Minecraft Bedrock</h3>
+            <div id="bd-sub" class="detail-sub">Wird geprüft …</div>
+          </div>
+        </div>
+        <button class="modal-close" data-close>✕</button>
+      </div>
+      <div class="modal-body">
+        <div id="bd-missing" class="mods-warn hidden">
+          ⚠ Bedrock ist nicht installiert. Es wird über den Microsoft Store bezogen – der Launcher kann es nicht selbst installieren.
+        </div>
+
+        <div id="bd-content">
+          <div class="bd-actions">
+            <button id="bd-play" class="btn btn-primary btn-lg">▶ Bedrock starten</button>
+            <button id="bd-import" class="btn">Add-on / Welt importieren…</button>
+          </div>
+
+          <div class="mods-tabs">
+            <button class="mtab btab on" data-kind="worlds">Welten</button>
+            <button class="mtab btab" data-kind="resource_packs">Ressourcenpakete</button>
+            <button class="mtab btab" data-kind="behavior_packs">Verhaltenspakete</button>
+            <button class="mtab btab" data-kind="skin_packs">Skin-Pakete</button>
+            <button class="mtab btab" data-kind="screenshots">Bildschirmfotos</button>
+          </div>
+
+          <div id="bd-list" class="mods-list"></div>
+        </div>
+      </div>
+      <div class="modal-foot">
+        <button id="bd-folder" class="btn" data-ic="folder">Ordner öffnen</button>
+        <div class="spacer"></div>
+        <button class="btn" data-close>Schließen</button>
+      </div>
+    </div>
+  </div>
+
   <!-- ===================== Kontextmenü (Rechtsklick auf Instanz) ===================== -->
   <div id="ctx-menu" class="ctx hidden">
     <button class="ctx-item" data-act="p-edit">Symbol ändern</button>
diff --git a/src/launcher.js b/src/launcher.js
index c3bf969..67a99f9 100644
--- a/src/launcher.js
+++ b/src/launcher.js
@@ -198,6 +198,10 @@ async function prepareAssets(vj, sharedDir, onProgress) {
   const ai = vj.assetIndex;
   if (!ai) return;
   const indexFile = path.join(sharedDir, 'assets', 'indexes', ai.id + '.json');
+  // Merker: einmal vollständig geprüfte Assets nicht erneut durchgehen (spart ~1,5 s pro Start)
+  const doneMark = path.join(sharedDir, 'assets', 'indexes', ai.id + '.complete');
+  if (fs.existsSync(doneMark) && fs.existsSync(indexFile)) return;
+
   await downloadIfNeeded(ai.url, indexFile, ai.sha1);
   const index = JSON.parse(fs.readFileSync(indexFile, 'utf8'));
   const objects = index.objects || {};
@@ -210,6 +214,8 @@ async function prepareAssets(vj, sharedDir, onProgress) {
     if (fs.existsSync(dest)) return;
     await downloadIfNeeded(`${RESOURCES}/${sub}/${o.hash}`, dest, o.hash);
   }, 16, (done, total) => onProgress && onProgress({ phase: 'assets', current: done, total, detail: 'Assets' }));
+
+  try { fs.writeFileSync(doneMark, new Date().toISOString()); } catch { /* egal */ }
 }
 
 // ---------------------------------------------------------------------------
@@ -347,8 +353,22 @@ async function prepareAndLaunch(opts, onProgress) {
   if (opts.loader === 'fabric' || opts.loader === 'quilt') {
     emit('loader', { detail: opts.loader + ' vorbereiten …' });
     let lp;
-    try { lp = (await loaders.resolveLoaderProfile(opts.loader, vj.id, opts.loaderVersion)).profile; }
-    catch (err) { return { ok: false, message: err.message }; }
+    // Profil zwischenspeichern: spart bei festgelegter Loader-Version die Netzabfrage
+    const cacheFile = opts.loaderVersion
+      ? path.join(opts.sharedDir, 'loaders', `${opts.loader}-${vj.id}-${opts.loaderVersion}.json`)
+      : null;
+    if (cacheFile && fs.existsSync(cacheFile)) {
+      try { lp = JSON.parse(fs.readFileSync(cacheFile, 'utf8')); } catch { lp = null; }
+    }
+    if (!lp) {
+      try {
+        const r = await loaders.resolveLoaderProfile(opts.loader, vj.id, opts.loaderVersion);
+        lp = r.profile;
+        const target = cacheFile
+          || path.join(opts.sharedDir, 'loaders', `${opts.loader}-${vj.id}-${r.loaderVersion}.json`);
+        try { ensureDir(path.dirname(target)); fs.writeFileSync(target, JSON.stringify(lp)); } catch { /* egal */ }
+      } catch (err) { return { ok: false, message: err.message }; }
+    }
     const loaderLibs = lp.libraries || [];
     let li = 0;
     for (const lib of loaderLibs) {
diff --git a/src/main.js b/src/main.js
index b18df02..21e1b13 100644
--- a/src/main.js
+++ b/src/main.js
@@ -18,6 +18,8 @@ const forge = require('./forge');
 const auth = require('./auth');
 const updater = require('./updater');
 const icons = require('./icons');
+const bedrock = require('./bedrock');
+const mmcimport = require('./mmcimport');
 
 // undici als globales fetch verwenden -> ermöglicht Proxy via setGlobalDispatcher
 const undici = require('undici');
@@ -101,6 +103,7 @@ function createWindow() {
 
 app.whenReady().then(() => {
   store.init(app.getPath('userData'));
+  services.setCacheDir(app.getPath('userData'));   // Java-Suche zwischenspeichern
   // Konten verschlüsselt speichern (Windows-DPAPI, an das Benutzerkonto gebunden)
   auth.init(app.getPath('userData'), {
     available: () => { try { return safeStorage.isEncryptionAvailable(); } catch { return false; } },
@@ -110,6 +113,9 @@ app.whenReady().then(() => {
   applyProxy(store.getSettings());
   createWindow();
 
+  // Java-Suche im Hintergrund vorbereiten -> erster Spielstart ohne Verzögerung
+  setTimeout(() => { try { services.scanJava(); } catch { /* egal */ } }, 800);
+
   // echte Minecraft-Icons einmalig aus den eigenen Spieldateien holen
   setTimeout(() => {
     try {
@@ -178,7 +184,7 @@ ipcMain.handle('settings:instancesDir', () => store.getInstancesDir());
 ipcMain.handle('java:detect', (_e, javaPath) => detectJava(javaPath));
 
 // automatische Java-Suche über das System
-ipcMain.handle('java:scan', () => services.scanJava());
+ipcMain.handle('java:scan', () => services.scanJava(false));   // Knopf sucht immer frisch
 
 // ---------------------------------------------------------------------------
 // IPC – Minecraft-Versionen (Mojang)
@@ -629,6 +635,69 @@ ipcMain.handle('app:openExternal', (_e, url) => {
   return true;
 });
 
+// ---------------------------------------------------------------------------
+// IPC – Instanzen aus MultiMC/Prism übernehmen
+// ---------------------------------------------------------------------------
+
+ipcMain.handle('mmc:pickFolder', async () => {
+  const res = await dialog.showOpenDialog(mainWindow, {
+    title: 'MultiMC-Ordner wählen (der Ordner mit MultiMC.exe)',
+    properties: ['openDirectory'],
+  });
+  return res.canceled ? null : res.filePaths[0];
+});
+
+ipcMain.handle('mmc:scan', (_e, folder) => {
+  try { return mmcimport.scan(folder); }
+  catch (err) { return { ok: false, reason: err.message }; }
+});
+
+ipcMain.handle('mmc:import', (_e, entries, copyData) => {
+  const done = [];
+  const failed = [];
+  for (const entry of entries || []) {
+    try { done.push(mmcimport.importOne(store, entry, copyData !== false)); }
+    catch (err) { failed.push({ name: entry.name, message: err.message }); }
+    if (mainWindow && !mainWindow.isDestroyed()) {
+      mainWindow.webContents.send('mmc:progress', { current: done.length + failed.length, total: entries.length });
+    }
+  }
+  return { ok: true, imported: done, failed };
+});
+
+// ---------------------------------------------------------------------------
+// IPC – Minecraft Bedrock (Windows-Store-App)
+// ---------------------------------------------------------------------------
+
+ipcMain.handle('bedrock:detect', () => bedrock.detect());
+ipcMain.handle('bedrock:launch', () => bedrock.launch());
+ipcMain.handle('bedrock:worlds', () => bedrock.listWorlds());
+ipcMain.handle('bedrock:list', (_e, kind) => bedrock.listFolder(kind));
+ipcMain.handle('bedrock:remove', (_e, kind, name) => bedrock.removeEntry(kind, name));
+
+ipcMain.handle('bedrock:openFolder', (_e, kind) => {
+  const p = bedrock.folderPath(kind);
+  if (p) { fs.mkdirSync(p, { recursive: true }); shell.openPath(p); }
+  return true;
+});
+
+ipcMain.handle('bedrock:installAddon', async () => {
+  const res = await dialog.showOpenDialog(mainWindow, {
+    title: 'Add-on oder Welt importieren',
+    properties: ['openFile'],
+    filters: [{ name: 'Bedrock-Pakete', extensions: ['mcpack', 'mcaddon', 'mcworld', 'mctemplate'] }],
+  });
+  if (res.canceled) return { ok: false, canceled: true };
+  return bedrock.installAddon(res.filePaths[0]);
+});
+
+// Weltordner im Explorer zeigen
+ipcMain.handle('bedrock:openWorld', (_e, dir) => {
+  const base = bedrock.folderPath('worlds');
+  if (base && dir && dir.startsWith(base) && fs.existsSync(dir)) shell.openPath(dir);
+  return true;
+});
+
 // ---------------------------------------------------------------------------
 // IPC – echte Minecraft-Icons (aus den eigenen Spieldateien)
 // ---------------------------------------------------------------------------
diff --git a/src/mmcimport.js b/src/mmcimport.js
new file mode 100644
index 0000000..7b0452d
--- /dev/null
+++ b/src/mmcimport.js
@@ -0,0 +1,148 @@
+'use strict';
+
+/*
+ * mmcimport.js – Instanzen aus MultiMC/Prism übernehmen
+ * ------------------------------------------------------
+ * Es genügt der Pfad zum MultiMC-Ordner (oder direkt zum instances-Ordner).
+ * Ausgelesen werden:
+ *   instance.cfg   – Name, Gruppe, Java-Pfad, Arbeitsspeicher, Notizen
+ *   mmc-pack.json  – Minecraft-Version und Mod-Loader
+ *   .minecraft/    – Spielverzeichnis (Welten, Mods, Konfigurationen)
+ */
+
+const fs = require('fs');
+const path = require('path');
+
+// uid der Loader in mmc-pack.json -> unsere Bezeichnung
+const LOADER_UIDS = {
+  'net.fabricmc.fabric-loader': 'fabric',
+  'org.quiltmc.quilt-loader': 'quilt',
+  'net.minecraftforge': 'forge',
+  'net.neoforged': 'neoforge',
+};
+
+function parseCfg(file) {
+  const out = {};
+  try {
+    for (const line of fs.readFileSync(file, 'utf8').split(/\r?\n/)) {
+      const i = line.indexOf('=');
+      if (i > 0) out[line.slice(0, i).trim()] = line.slice(i + 1).trim();
+    }
+  } catch { /* Datei fehlt */ }
+  return out;
+}
+
+// Gruppen stehen zentral in instances/instgroups.json
+function readGroups(instancesDir) {
+  const map = {};
+  try {
+    const raw = JSON.parse(fs.readFileSync(path.join(instancesDir, 'instgroups.json'), 'utf8'));
+    for (const [group, data] of Object.entries(raw.groups || {})) {
+      for (const inst of data.instances || []) map[inst] = group;
+    }
+  } catch { /* keine Gruppen hinterlegt */ }
+  return map;
+}
+
+function readPack(dir) {
+  const res = { version: '', loader: 'vanilla', loaderVersion: '' };
+  try {
+    const pack = JSON.parse(fs.readFileSync(path.join(dir, 'mmc-pack.json'), 'utf8'));
+    for (const c of pack.components || []) {
+      if (c.uid === 'net.minecraft') res.version = c.version || c.cachedVersion || '';
+      const loader = LOADER_UIDS[c.uid];
+      if (loader) { res.loader = loader; res.loaderVersion = c.version || ''; }
+    }
+  } catch { /* alte Instanz ohne mmc-pack.json */ }
+  return res;
+}
+
+// findet den instances-Ordner, egal ob MultiMC-Wurzel oder instances direkt angegeben wurde
+function resolveInstancesDir(inputPath) {
+  if (!inputPath) return null;
+  const direct = path.join(inputPath, 'instances');
+  if (fs.existsSync(direct)) return direct;
+  if (path.basename(inputPath).toLowerCase() === 'instances' && fs.existsSync(inputPath)) return inputPath;
+  return fs.existsSync(inputPath) ? inputPath : null;
+}
+
+/*
+ * Listet die gefundenen Instanzen auf (ohne etwas zu kopieren).
+ */
+function scan(inputPath) {
+  const instancesDir = resolveInstancesDir(inputPath);
+  if (!instancesDir) return { ok: false, reason: 'not-found' };
+
+  const groups = readGroups(instancesDir);
+  const list = [];
+  for (const entry of fs.readdirSync(instancesDir, { withFileTypes: true })) {
+    if (!entry.isDirectory()) continue;
+    const dir = path.join(instancesDir, entry.name);
+    const cfgFile = path.join(dir, 'instance.cfg');
+    if (!fs.existsSync(cfgFile)) continue;           // kein Instanzordner
+
+    const cfg = parseCfg(cfgFile);
+    const pack = readPack(dir);
+    // MultiMC nutzt .minecraft, Prism minecraft
+    const gameDir = ['.minecraft', 'minecraft']
+      .map((n) => path.join(dir, n))
+      .find((p) => fs.existsSync(p)) || null;
+
+    list.push({
+      folder: entry.name,
+      dir,
+      name: cfg.name || entry.name,
+      group: groups[entry.name] || '',
+      notes: cfg.notes || '',
+      version: pack.version || cfg.IntendedVersion || '',
+      loader: pack.loader,
+      loaderVersion: pack.loaderVersion,
+      javaPath: cfg.OverrideJavaLocation === 'true' ? (cfg.JavaPath || '') : '',
+      minMemMb: cfg.OverrideMemory === 'true' ? Number(cfg.MinMemAlloc) || null : null,
+      maxMemMb: cfg.OverrideMemory === 'true' ? Number(cfg.MaxMemAlloc) || null : null,
+      gameDir,
+      hasGameData: !!gameDir,
+    });
+  }
+  list.sort((a, b) => a.name.localeCompare(b.name));
+  return { ok: true, instancesDir, count: list.length, instances: list };
+}
+
+/*
+ * Übernimmt eine Instanz in den Launcher.
+ * store: unser Datenspeicher; copyData: Spielverzeichnis mitkopieren
+ */
+function importOne(store, entry, copyData = true) {
+  const created = store.createInstance({
+    name: entry.name,
+    group: entry.group,
+    notes: entry.notes,
+    minecraft: {
+      version: entry.version,
+      loader: entry.loader,
+      loaderVersion: entry.loaderVersion,
+    },
+  });
+
+  const patch = {};
+  if (entry.javaPath || entry.minMemMb || entry.maxMemMb) {
+    patch.java = {
+      path: entry.javaPath || '',
+      minMemMb: entry.minMemMb || null,
+      maxMemMb: entry.maxMemMb || null,
+      extraArgs: '',
+    };
+  }
+  if (Object.keys(patch).length) store.updateInstance(created.id, patch);
+
+  let copied = false;
+  if (copyData && entry.gameDir && fs.existsSync(entry.gameDir)) {
+    try {
+      fs.cpSync(entry.gameDir, store.gameDir(created.id), { recursive: true });
+      copied = true;
+    } catch { /* Spieldaten konnten nicht kopiert werden */ }
+  }
+  return { id: created.id, name: created.name, copied };
+}
+
+module.exports = { scan, importOne, resolveInstancesDir };
diff --git a/src/preload.js b/src/preload.js
index 9560fce..ee851f2 100644
--- a/src/preload.js
+++ b/src/preload.js
@@ -86,6 +86,26 @@ contextBridge.exposeInMainWorld('api', {
   },
 
   // Dialoge / App
+  // MultiMC-Import
+  mmcPickFolder: () => ipcRenderer.invoke('mmc:pickFolder'),
+  mmcScan: (folder) => ipcRenderer.invoke('mmc:scan', folder),
+  mmcImport: (entries, copyData) => ipcRenderer.invoke('mmc:import', entries, copyData),
+  onMmcProgress: (cb) => {
+    const l = (_e, d) => cb(d);
+    ipcRenderer.on('mmc:progress', l);
+    return () => ipcRenderer.removeListener('mmc:progress', l);
+  },
+
+  // Bedrock (Windows-Store-Ausgabe)
+  bedrockDetect: () => ipcRenderer.invoke('bedrock:detect'),
+  bedrockLaunch: () => ipcRenderer.invoke('bedrock:launch'),
+  bedrockWorlds: () => ipcRenderer.invoke('bedrock:worlds'),
+  bedrockList: (kind) => ipcRenderer.invoke('bedrock:list', kind),
+  bedrockRemove: (kind, name) => ipcRenderer.invoke('bedrock:remove', kind, name),
+  bedrockOpenFolder: (kind) => ipcRenderer.invoke('bedrock:openFolder', kind),
+  bedrockInstallAddon: () => ipcRenderer.invoke('bedrock:installAddon'),
+  bedrockOpenWorld: (dir) => ipcRenderer.invoke('bedrock:openWorld', dir),
+
   // echte Minecraft-Icons
   iconsList: () => ipcRenderer.invoke('icons:list'),
   iconsExtract: () => ipcRenderer.invoke('icons:extract'),
diff --git a/src/renderer.js b/src/renderer.js
index 95c44d6..8acb821 100644
--- a/src/renderer.js
+++ b/src/renderer.js
@@ -256,6 +256,194 @@ function applyTheme(theme) {
   document.documentElement.setAttribute('data-theme', theme === 'light' ? 'light' : 'dark');
 }
 
+// ---------- Instanzen aus MultiMC übernehmen ----------
+let mmcFound = [];
+
+function openMmc() {
+  el('mmc-result').classList.add('hidden');
+  el('mmc-do').disabled = true;
+  el('mmc-progress').textContent = '';
+  el('mmc-status').textContent = 'Gib den Ordner an, in dem MultiMC.exe liegt.';
+  show('modal-mmc');
+  el('mmc-path').focus();
+}
+
+async function scanMmc() {
+  const folder = el('mmc-path').value.trim();
+  if (!folder) { el('mmc-status').textContent = 'Bitte zuerst einen Ordner angeben.'; return; }
+  el('mmc-status').textContent = 'Suche Instanzen …';
+  const res = await window.api.mmcScan(folder);
+  if (!res.ok) {
+    el('mmc-status').textContent = '✖ Dort wurde kein instances-Ordner gefunden.';
+    el('mmc-result').classList.add('hidden');
+    el('mmc-do').disabled = true;
+    return;
+  }
+  mmcFound = res.instances;
+  el('mmc-status').textContent = `${res.count} Instanz${res.count === 1 ? '' : 'en'} gefunden.`;
+  el('mmc-result').classList.remove('hidden');
+  el('mmc-all').checked = true;
+  renderMmcList();
+}
+
+function renderMmcList() {
+  const box = el('mmc-list');
+  box.innerHTML = '';
+  if (!mmcFound.length) { box.innerHTML = '<div class="mods-empty">Keine Instanzen gefunden.</div>'; return; }
+  mmcFound.forEach((inst, idx) => {
+    const row = document.createElement('label');
+    row.className = 'mmc-item';
+    const loaderTxt = inst.loader === 'vanilla'
+      ? 'Vanilla'
+      : (LOADER_LABEL[inst.loader] || inst.loader) + (inst.loaderVersion ? ' ' + inst.loaderVersion : '');
+    const meta = [inst.version || 'ohne Version', loaderTxt, inst.group ? 'Gruppe: ' + inst.group : '']
+      .filter(Boolean).join(' · ');
+    row.innerHTML =
+      `<input type="checkbox" data-idx="${idx}" checked />
+       <div class="mod-info">
+         <div class="mmc-name">${escapeHtml(inst.name)}</div>
+         <div class="mmc-meta">${escapeHtml(meta)}</div>
+       </div>`;
+    box.appendChild(row);
+  });
+  updateMmcButton();
+}
+
+function selectedMmc() {
+  return [...document.querySelectorAll('#mmc-list input[type=checkbox]')]
+    .filter((c) => c.checked)
+    .map((c) => mmcFound[Number(c.dataset.idx)]);
+}
+
+function updateMmcButton() {
+  const n = selectedMmc().length;
+  el('mmc-do').disabled = n === 0;
+  el('mmc-do').textContent = n ? `${n} übernehmen` : 'Übernehmen';
+}
+
+async function runMmcImport() {
+  const entries = selectedMmc();
+  if (!entries.length) return;
+  const copy = el('mmc-copy').checked;
+  el('mmc-do').disabled = true;
+  el('mmc-progress').textContent = 'Übernehme …';
+
+  const res = await window.api.mmcImport(entries, copy);
+  await reload();
+  hide('modal-mmc');
+  const n = res.imported.length;
+  const f = res.failed.length;
+  toast(`${n} Instanz${n === 1 ? '' : 'en'} übernommen${f ? ` · ${f} fehlgeschlagen` : ''}.`, f > 0);
+  if (instances.length) await selectInstance(instances[0].id);
+}
+
+// ---------- Bedrock (Windows-Store-Ausgabe) ----------
+let bedrockKind = 'worlds';
+
+// Bedrock-Knopf nur zeigen, wenn aktiviert UND tatsächlich installiert
+async function applyBedrockVisibility() {
+  const btn = el('btn-bedrock');
+  let show = false;
+  try {
+    const s = await window.api.getSettings();
+    if (s.bedrockEnabled !== false) {
+      const info = await window.api.bedrockDetect();
+      show = !!info.installed;
+      const hint = el('s-bedrock-hint');
+      if (hint) {
+        hint.textContent = info.installed
+          ? 'Bedrock erkannt (Version ' + info.version + ').'
+          : 'Bedrock ist auf diesem PC nicht installiert – der Bereich bleibt ausgeblendet.';
+      }
+    }
+  } catch { /* im Zweifel ausblenden */ }
+  btn.classList.toggle('hidden', !show);
+}
+
+async function openBedrock() {
+  show('modal-bedrock');
+  el('bd-sub').textContent = 'Wird geprüft …';
+  const info = await window.api.bedrockDetect();
+  if (!info.installed) {
+    el('bd-sub').textContent = 'nicht installiert';
+    el('bd-missing').classList.remove('hidden');
+    el('bd-content').classList.add('hidden');
+    return;
+  }
+  el('bd-missing').classList.add('hidden');
+  el('bd-content').classList.remove('hidden');
+  el('bd-sub').textContent = 'Version ' + info.version;
+  switchBedrockTab('worlds');
+}
+
+function switchBedrockTab(kind) {
+  bedrockKind = kind;
+  document.querySelectorAll('.btab').forEach((t) => t.classList.toggle('on', t.dataset.kind === kind));
+  renderBedrockList();
+}
+
+function fmtBytes(n) {
+  if (!n) return '';
+  if (n < 1024) return n + ' B';
+  if (n < 1048576) return (n / 1024).toFixed(0) + ' KB';
+  return (n / 1048576).toFixed(1) + ' MB';
+}
+
+async function renderBedrockList() {
+  const box = el('bd-list');
+  box.innerHTML = '<div class="mods-empty">Lade …</div>';
+  const kind = bedrockKind;
+  const items = kind === 'worlds' ? await window.api.bedrockWorlds() : await window.api.bedrockList(kind);
+
+  box.innerHTML = '';
+  if (!items.length) {
+    const leer = {
+      worlds: 'Noch keine Welten vorhanden.',
+      resource_packs: 'Keine Ressourcenpakete installiert.',
+      behavior_packs: 'Keine Verhaltenspakete installiert.',
+      skin_packs: 'Keine Skin-Pakete installiert.',
+      screenshots: 'Noch keine Bildschirmfotos.',
+    };
+    box.innerHTML = `<div class="mods-empty">${leer[kind] || 'Nichts vorhanden.'}</div>`;
+    return;
+  }
+
+  for (const it of items) {
+    const name = it.name || it.id;
+    const item = document.createElement('div');
+    item.className = 'mod-item';
+    const meta = [fmtBytes(it.bytes), it.modified ? fmtDate(it.modified) : ''].filter(Boolean).join(' · ');
+    item.innerHTML =
+      `<div class="mod-icon">${kind === 'worlds' ? '🌍' : kind === 'screenshots' ? '🖼' : '📦'}</div>
+       <div class="mod-info">
+         <div class="mod-name">${escapeHtml(name)}</div>
+         <div class="bd-meta">${escapeHtml(meta)}</div>
+       </div>
+       <div class="mod-action"></div>`;
+
+    const actions = item.querySelector('.mod-action');
+    if (kind === 'worlds') {
+      const open = document.createElement('button');
+      open.className = 'btn btn-mini';
+      open.textContent = 'Ordner';
+      open.addEventListener('click', () => window.api.bedrockOpenWorld(it.dir));
+      actions.appendChild(open);
+    }
+    const del = document.createElement('button');
+    del.className = 'btn btn-danger btn-mini';
+    del.textContent = 'Löschen';
+    del.addEventListener('click', () => askConfirm(
+      'Löschen', `„${name}" wird unwiderruflich gelöscht. Fortfahren?`, 'Endgültig löschen',
+      async () => {
+        await window.api.bedrockRemove(kind, kind === 'worlds' ? it.id : it.name);
+        await renderBedrockList();
+        toast('Gelöscht: ' + name);
+      }));
+    actions.appendChild(del);
+    box.appendChild(item);
+  }
+}
+
 // ---------- Kontextmenü (Rechtsklick auf eine Instanz) ----------
 function openContextMenu(x, y) {
   const menu = el('ctx-menu');
@@ -1222,6 +1410,7 @@ async function openSettings() {
   el('s-bgskin-pose').value = s.bgSkinPose || 'walking';
   el('s-sortby').value = s.sortBy || 'lastPlayed';
   el('s-iso3d').checked = s.iso3dIcons !== false;
+  el('s-bedrock').checked = s.bedrockEnabled !== false;
   el('s-console-launch').checked = !!s.showConsoleOnLaunch;
   el('s-console-autoclose').checked = !!s.autoCloseConsole;
   el('s-console-crash').checked = s.showConsoleOnCrash !== false;
@@ -1245,16 +1434,24 @@ async function openSettings() {
 
   const info = await window.api.appInfo();
   el('s-appinfo').innerHTML =
-    `AeroMC ${info.version} · Electron ${info.electron} · Node ${info.node}<br>` +
-    `<span class="mono">${escapeHtml(info.userData)}</span>`;
+    `Version ${info.version}<br><span class="mono">${escapeHtml(info.userData)}</span>`;
   show('modal-settings');
+  await renderAccounts('s-accounts');   // Konten direkt in den Einstellungen zeigen
+  applyBedrockVisibility();             // aktualisiert auch den Hinweistext
 }
 
 async function refreshJavaStatus(javaPath) {
-  el('s-java-status').textContent = 'Prüfe Java …';
+  const box = el('s-java-status');
+  box.className = 'hint';
+  box.textContent = 'Prüfe Java …';
   const r = await window.api.detectJava(javaPath);
-  el('s-java-status').textContent = r.ok ? '✔ ' + r.version : '✖ Java nicht gefunden (' + (r.error || 'unbekannt') + ')';
-  el('s-java-status').style.color = r.ok ? 'var(--accent-hover)' : 'var(--danger-hover)';
+  if (r.ok) {
+    box.classList.add('status-ok');           // grün, wenn Java passt
+    box.textContent = '✔ ' + r.version;
+  } else {
+    box.classList.add('status-bad');
+    box.textContent = '✖ Java nicht gefunden (' + (r.error || 'unbekannt') + ')';
+  }
 }
 
 async function scanJava() {
@@ -1287,6 +1484,7 @@ async function saveSettings() {
     bgSkinPose: el('s-bgskin-pose').value,
     sortBy: el('s-sortby').value,
     iso3dIcons: el('s-iso3d').checked,
+    bedrockEnabled: el('s-bedrock').checked,
     showConsoleOnLaunch: el('s-console-launch').checked,
     autoCloseConsole: el('s-console-autoclose').checked,
     showConsoleOnCrash: el('s-console-crash').checked,
@@ -1309,6 +1507,7 @@ async function saveSettings() {
   await window.api.saveSettings(patch);
   applyTheme(patch.theme);
   iso3dEnabled = patch.iso3dIcons;
+  await applyBedrockVisibility();
   await applySkinBackground();
   hide('modal-settings');
   toast('Einstellungen gespeichert.');
@@ -1333,9 +1532,16 @@ async function refreshAccountButton() {
   }
 }
 
-async function renderAccounts() {
+// aktualisiert Kontoliste im Login-Dialog und in den Einstellungen
+async function refreshAllAccountLists() {
+  await renderAccounts('login-accounts');
+  if (!el('modal-settings').classList.contains('hidden')) await renderAccounts('s-accounts');
+}
+
+async function renderAccounts(boxId = 'login-accounts') {
   const accounts = await window.api.authAccounts();
-  const box = el('login-accounts');
+  const box = el(boxId);
+  if (!box) return;
   box.innerHTML = '';
   if (!accounts.length) {
     box.innerHTML = '<div class="account-empty">Noch kein Konto angemeldet.</div>';
@@ -1369,7 +1575,7 @@ async function renderAccounts() {
       use.textContent = 'Aktivieren';
       use.addEventListener('click', async () => {
         await window.api.authSetActive(a.id);
-        await renderAccounts();
+        await refreshAllAccountLists();
         await refreshAccountButton();
         await applySkinBackground();
         toast('Aktiv: ' + a.name);
@@ -1381,7 +1587,7 @@ async function renderAccounts() {
     rm.textContent = 'Entfernen';
     rm.addEventListener('click', async () => {
       await window.api.authRemove(a.id);
-      await renderAccounts();
+      await refreshAllAccountLists();
       await refreshAccountButton();
       toast('Entfernt: ' + a.name);
     });
@@ -1399,7 +1605,7 @@ function resetLoginHint() {
 async function openLogin() {
   el('login-code').classList.add('hidden');
   resetLoginHint();
-  await renderAccounts();
+  await refreshAllAccountLists();
   show('modal-login');
 }
 
@@ -1414,7 +1620,7 @@ async function addAccount() {
     const res = await window.api.authLogin(); // läuft bis zur Bestätigung
     el('login-code').classList.add('hidden');
     if (res.ok) {
-      await renderAccounts();
+      await refreshAllAccountLists();
       await refreshAccountButton();
       toast('Angemeldet als ' + res.account.profile.name);
     } else {
@@ -1516,6 +1722,41 @@ function wire() {
     if (h.ok) toast('Anmelde-Dienste wieder erreichbar.');
   });
 
+  // MultiMC-Import
+  el('btn-mmc').addEventListener('click', () => { hide('modal-settings'); openMmc(); });
+  el('mmc-pick').addEventListener('click', async () => {
+    const p = await window.api.mmcPickFolder();
+    if (p) { el('mmc-path').value = p; await scanMmc(); }
+  });
+  el('mmc-scan').addEventListener('click', scanMmc);
+  el('mmc-path').addEventListener('keydown', (e) => { if (e.key === 'Enter') scanMmc(); });
+  el('mmc-all').addEventListener('change', (e) => {
+    document.querySelectorAll('#mmc-list input[type=checkbox]').forEach((c) => { c.checked = e.target.checked; });
+    updateMmcButton();
+  });
+  el('mmc-list').addEventListener('change', updateMmcButton);
+  el('mmc-do').addEventListener('click', runMmcImport);
+  window.api.onMmcProgress((p) => {
+    el('mmc-progress').textContent = `Übernehme … ${p.current}/${p.total}`;
+  });
+
+  // Bedrock
+  el('btn-bedrock').addEventListener('click', openBedrock);
+  el('bd-play').addEventListener('click', async () => {
+    const res = await window.api.bedrockLaunch();
+    if (res && res.ok) toast('Bedrock wird gestartet …');
+    else toast('Start fehlgeschlagen: ' + ((res && res.message) || 'unbekannter Fehler'), true);
+  });
+  el('bd-import').addEventListener('click', async () => {
+    const res = await window.api.bedrockInstallAddon();
+    if (res.canceled) return;
+    if (res.ok) toast('Import gestartet – Minecraft übernimmt die Installation.');
+    else toast(res.message || 'Import fehlgeschlagen.', true);
+  });
+  el('bd-folder').addEventListener('click', () => window.api.bedrockOpenFolder(bedrockKind));
+  document.querySelectorAll('.btab').forEach((t) =>
+    t.addEventListener('click', () => switchBedrockTab(t.dataset.kind)));
+
   // Konsole
   el('btn-console').addEventListener('click', openConsole);
   el('console-clear').addEventListener('click', () => { consoleBuffer = ''; el('console-out').textContent = ''; });
@@ -1631,6 +1872,7 @@ function wire() {
     document.querySelectorAll('.spane').forEach((p) => p.classList.toggle('hidden', p.id !== b.dataset.pane));
   }));
   el('s-open-accounts').addEventListener('click', () => { hide('modal-settings'); openLogin(); });
+  el('s-add-account').addEventListener('click', () => { hide('modal-settings'); openLogin().then(addAccount); });
 
   // Updates
   el('upd-install').addEventListener('click', startUpdate);
@@ -1699,6 +1941,7 @@ window.addEventListener('DOMContentLoaded', async () => {
   window.api.onUpdateProgress(onUpdateProgress);
   try { showAuthHealth(await window.api.authHealth()); } catch { /* noch keine Prüfung */ }
   await loadMcIcons();          // echte Minecraft-Icons bereitstellen
+  await applyBedrockVisibility();
   await refreshAccountButton();
   await reload();
 
diff --git a/src/services.js b/src/services.js
index 4f79960..894dc47 100644
--- a/src/services.js
+++ b/src/services.js
@@ -82,7 +82,34 @@ function parseJavaVersion(javaPath, out) {
   return { path: javaPath, version: raw || 'unbekannt', major: major || 0, arch, info: vendorLine };
 }
 
-function scanJava() {
+// Ergebnis des Suchlaufs zwischenspeichern – die Suche kostet ~1 s
+let javaCache = null;
+let javaCacheFile = null;
+function setCacheDir(dir) { javaCacheFile = path.join(dir, 'java-cache.json'); }
+
+function scanJava(useCache = true) {
+  const MAX_AGE = 24 * 3600 * 1000;
+  if (useCache) {
+    if (javaCache && Date.now() - javaCache.at < MAX_AGE) return javaCache.list;
+    // Cache von der Platte (gilt auch direkt nach dem Start)
+    if (javaCacheFile) {
+      try {
+        const c = JSON.parse(fs.readFileSync(javaCacheFile, 'utf8'));
+        if (c && Date.now() - c.at < MAX_AGE && Array.isArray(c.list)
+            && c.list.every((j) => fs.existsSync(j.path))) {
+          javaCache = c;
+          return c.list;
+        }
+      } catch { /* kein oder unbrauchbarer Cache */ }
+    }
+  }
+  const list = scanJavaUncached();
+  javaCache = { at: Date.now(), list };
+  if (javaCacheFile) { try { fs.writeFileSync(javaCacheFile, JSON.stringify(javaCache)); } catch { /* egal */ } }
+  return list;
+}
+
+function scanJavaUncached() {
   const found = new Set();
 
   // 1) JAVA_HOME
@@ -257,7 +284,7 @@ async function modrinthProjectTitle(projectId) {
 }
 
 module.exports = {
-  scanJava, probeJava,
+  scanJava, probeJava, setCacheDir,
   getMcVersions,
   modrinthSearch, modrinthResolveFile, modrinthInstall, modrinthProjectTitle, downloadFile,
 };
diff --git a/src/store.js b/src/store.js
index f1d5191..7418141 100644
--- a/src/store.js
+++ b/src/store.js
@@ -65,6 +65,7 @@ const DEFAULT_SETTINGS = {
   mcHeight: 480,
   sortBy: 'lastPlayed',        // lastPlayed | name
   iso3dIcons: true,            // Block-Symbole räumlich darstellen
+  bedrockEnabled: true,        // Bedrock-Bereich anzeigen (nur wenn auch installiert)
   bgSkin: '',              // '' = aus, 'active' = aktives Konto, sonst Konto-UUID
   bgSkinOpacity: 55,       // Deckkraft des Hintergrund-Skins in %
   bgSkinPose: 'walking',   // Pose des 3D-Renders (falls der Pose-Dienst erreichbar ist)
diff --git a/src/styles.css b/src/styles.css
index 513fb08..de0257c 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -246,6 +246,19 @@ body{display:grid;grid-template-rows:auto 1fr auto;height:100vh;overflow:hidden}
 .mod-meta{font-size:11px;color:var(--dim);margin-top:2px}
 .mod-action{flex:none}
 
+/* MultiMC-Import */
+.mmc-bar{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
+.mmc-item{display:flex;gap:10px;align-items:center;padding:7px 8px;border-radius:3px}
+.mmc-item+.mmc-item{border-top:1px solid var(--border2)}
+.mmc-item:hover{background:rgba(128,128,128,.10)}
+.mmc-item input{width:16px;height:16px;flex:none}
+.mmc-name{font-weight:600;font-size:13px}
+.mmc-meta{font-size:11px;color:var(--dim)}
+
+/* Bedrock */
+.bd-actions{display:flex;gap:8px;align-items:center;margin-bottom:14px}
+.bd-meta{font-size:11px;color:var(--dim);margin-top:2px}
+
 /* Login / Konten */
 .login-code{text-align:center}
 .login-link{color:var(--link);font-size:15px;display:inline-block;margin-bottom:12px;cursor:pointer;text-decoration:none}
@@ -285,6 +298,9 @@ img.account-av{object-fit:cover;image-rendering:pixelated}
 .snav.on{background:var(--sel);border-color:var(--sel-br);color:var(--text)}
 .settings-content{flex:1;padding:16px 18px;overflow:auto}
 .spane h4{margin:0 0 14px;font-size:14px;font-weight:600}
+.status-ok{color:#2e8b2e!important;font-weight:600}
+.status-bad{color:var(--danger)!important;font-weight:600}
+:root[data-theme="dark"] .status-ok{color:#5cd65c!important}
 .checkbox-field{display:flex;align-items:center;gap:8px;margin-bottom:14px;cursor:pointer;font-size:13px}
 .checkbox-field input{width:16px;height:16px}
 .field-port{max-width:110px;flex:none}