diff --git a/gulpfile.js b/gulpfile.js
index 32cf1240..67fb101d 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -42,7 +42,7 @@ function makePackage(platform, arch) {
     name: packageJson.name,
     platform: platform,
     arch: arch,
-    version: '0.34.3',
+    version: '0.35.1',
     out: './release',
     prune: true,
     overwrite: true,
diff --git a/package.json b/package.json
index d86c6255..2ce631c6 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "devDependencies": {
     "electron-connect": "^0.3.3",
     "electron-packager": "^5.1.0",
-    "electron-prebuilt": "^0.34.3",
+    "electron-prebuilt": "^0.35.1",
     "gulp": "^3.9.0",
     "gulp-jsbeautifier": "^1.0.1"
   }
diff --git a/src/common/osVersion.js b/src/common/osVersion.js
new file mode 100644
index 00000000..8b320fbb
--- /dev/null
+++ b/src/common/osVersion.js
@@ -0,0 +1,7 @@
+var os = require('os');
+var release_split = os.release().split('.');
+
+module.exports = {
+  major: parseInt(release_split[0]),
+  minor: parseInt(release_split[1])
+};
diff --git a/src/index.js b/src/index.js
index 0d640a2f..ce0d1696 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,6 +1,7 @@
 'use strict';
 
-var remote = require('remote');
+const electron = require('electron');
+const remote = electron.remote;
 var url = require('url');
 
 var contextMenu = require('./menus/context');
@@ -8,7 +9,7 @@ var contextMenu = require('./menus/context');
 var webView = document.getElementById('mainWebview');
 
 try {
-  var configFile = remote.require('app').getPath('userData') + '/config.json';
+  var configFile = electron.remote.app.getPath('userData') + '/config.json';
   var config = require(configFile);
   if (config.url) {
     webView.setAttribute('src', config.url);
@@ -32,10 +33,10 @@ webView.addEventListener('page-title-set', function(e) {
 
 // Open external link in default browser.
 webView.addEventListener('new-window', function(e) {
-  var currentUrl = url.parse(webView.getUrl());
-  var destUrl = url.parse(e.url);
+  var currentURL = url.parse(webView.getURL());
+  var destURL = url.parse(e.url);
   // Open in browserWindow. for exmaple, attached files.
-  if (currentUrl.host === destUrl.host) {
+  if (currentURL.host === destURL.host) {
     window.open(e.url, 'Mattermost');
   }
   else {
@@ -60,12 +61,11 @@ var showUnreadBadge = function(unreadCount) {
       }
       break;
     case 'darwin':
-      var app = remote.require('app');
       if (unreadCount > 0) {
-        app.dock.setBadge(unreadCount.toString());
+        remote.app.dock.setBadge(unreadCount.toString());
       }
       else {
-        app.dock.setBadge('');
+        remote.app.dock.setBadge('');
       }
       break;
     default:
diff --git a/src/main.js b/src/main.js
index 1044389c..62324895 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,10 +1,11 @@
 'use strict';
 
-var app = require('app'); // Module to control application life.
-var BrowserWindow = require('browser-window'); // Module to create native browser window.
-var Menu = require('menu');
-var Tray = require('tray');
-var ipc = require('ipc');
+const electron = require('electron');
+const app = electron.app; // Module to control application life.
+const BrowserWindow = electron.BrowserWindow; // Module to create native browser window.
+const Menu = electron.Menu;
+const Tray = electron.Tray;
+const ipc = electron.ipcMain;
 var appMenu = require('./menus/app');
 
 var client = null;
@@ -21,6 +22,9 @@ var mainWindow = null;
 var trayIcon = null;
 var willAppQuit = false;
 
+// For toast notification on windows
+app.setAppUserModelId('yuya-oc.electron-mattermost');
+
 // Quit when all windows are closed.
 app.on('window-all-closed', function() {
   // On OS X it is common for applications and their menu bar
@@ -56,10 +60,10 @@ app.on('ready', function() {
     trayIcon.setToolTip(app.getName());
     var tray_menu = require('./menus/tray').createDefault();
     trayIcon.setContextMenu(tray_menu);
-    trayIcon.on('clicked', function() {
+    trayIcon.on('click', function() {
       mainWindow.focus();
     });
-    trayIcon.on('balloon-clicked', function() {
+    trayIcon.on('balloon-click', function() {
       mainWindow.focus();
     });
     ipc.on('notified', function(event, arg) {
@@ -79,7 +83,7 @@ app.on('ready', function() {
   });
 
   // and load the index.html of the app.
-  mainWindow.loadUrl('file://' + __dirname + '/index.html');
+  mainWindow.loadURL('file://' + __dirname + '/index.html');
 
   // Open the DevTools.
   // mainWindow.openDevTools();
diff --git a/src/menus/app.js b/src/menus/app.js
index f9a43273..dacc903e 100644
--- a/src/menus/app.js
+++ b/src/menus/app.js
@@ -1,9 +1,10 @@
 'use strict';
 
-var Menu = require('menu');
+const electron = require('electron');
+const Menu = electron.Menu;
 
 var createTemplate = function(mainWindow) {
-  var app_name = require('app').getName()
+  var app_name = electron.app.getName();
   var first_menu_name = (process.platform === 'darwin') ? app_name : 'File';
   var template = [];
   template.push({
@@ -14,13 +15,13 @@ var createTemplate = function(mainWindow) {
     }, {
       label: 'Settings',
       click: function(item, focusedWindow) {
-        mainWindow.loadUrl('file://' + __dirname + '/../settings.html');
+        mainWindow.loadURL('file://' + __dirname + '/../settings.html');
       }
     }, {
       label: 'Quit',
       accelerator: 'CmdOrCtrl+Q',
       click: function(item, focusedWindow) {
-        require('app').quit();
+        electron.app.quit();
       }
     }]
   });
diff --git a/src/menus/context.js b/src/menus/context.js
index 72f46788..7183f7c3 100644
--- a/src/menus/context.js
+++ b/src/menus/context.js
@@ -1,8 +1,8 @@
 'use strict';
 
-var remote = require('remote');
-var Menu = remote.require('menu');
-var MenuItem = remote.require('menu-item');
+const remote = require('electron').remote;
+const Menu = remote.Menu;
+const MenuItem = remote.MenuItem;
 
 var createDefault = function() {
   var menu = new Menu();
diff --git a/src/menus/tray.js b/src/menus/tray.js
index 8796a814..58e70e08 100644
--- a/src/menus/tray.js
+++ b/src/menus/tray.js
@@ -1,7 +1,8 @@
 'use strict';
 
-var Menu = require('menu');
-var MenuItem = require('menu-item');
+const electron = require('electron');
+const Menu = electron.Menu;
+const MenuItem = electron.MenuItem;
 
 var createDefault = function() {
   var menu = new Menu();
diff --git a/src/settings.html b/src/settings.html
index 453b221c..85931cd7 100644
--- a/src/settings.html
+++ b/src/settings.html
@@ -15,11 +15,11 @@
   <input type="button" value="Cancel" onclick="goBack()">
 
   <script type="text/javascript">
-    var remote = require('remote');
+    const remote = require('electron').remote;
     var fs = require('fs');
 
     var saveSettings = function() {
-      var configFile = remote.require('app').getPath('userData') + '/config.json';
+      var configFile = remote.app.getPath('userData') + '/config.json';
       var urlInput = document.getElementById('url');
       var config = {
         url: urlInput.value
diff --git a/src/webview/mattermost.js b/src/webview/mattermost.js
index 196183ea..78e0fa0d 100644
--- a/src/webview/mattermost.js
+++ b/src/webview/mattermost.js
@@ -1,14 +1,27 @@
 'use strict';
 
-var ipc = require('ipc');
+const electron = require('electron');
+const ipc = electron.ipcRenderer;
+const NativeNotification = Notification;
 
 ipc.on('retrieveUnreadCount', function() {
   var unreadCount = document.getElementsByClassName('unread-title').length;
   ipc.sendToHost('retrieveUnreadCount', unreadCount);
+  console.log(isLowerThanOrEqualWindows8_1());
 });
 
+// On Windows 8.1 and Windows 8, a shortcut with a Application User Model ID must be installed to the Start screen.
+// In current version, use tray balloon for notification
+function isLowerThanOrEqualWindows8_1() {
+  if (process.platform != 'win32') {
+    return false;
+  }
+  var osVersion = require('../common/osVersion');
+  return (osVersion.major <= 6 && osVersion.minor <= 3);
+};
+
 // Show balloon when notified.
-if (process.platform === 'win32') {
+function overrideNotificationWithBalloon() {
   Notification = function(title, options) {
     ipc.send('notified', {
       title: title,
@@ -19,12 +32,10 @@ if (process.platform === 'win32') {
     callback('granted');
   };
   Notification.prototype.close = function() {};
-}
+};
 
-// Show window even if it is hidden when notification is clicked.
-var NativeNotification = null;
-if (process.platform === 'darwin') {
-  NativeNotification = Notification;
+// Show window even if it is hidden/minimized when notification is clicked.
+function overrideNotification() {
   Notification = function(title, options) {
     this.notification = new NativeNotification(title, options);
   };
@@ -36,8 +47,15 @@ if (process.platform === 'darwin') {
   };
   Notification.prototype.__defineSetter__('onclick', function(callback) {
     this.notification.onclick = function() {
-      require('remote').getCurrentWindow().show();
+      electron.remote.getCurrentWindow().show();
       callback();
     };
   });
 }
+
+if (process.platform === 'win32' && isLowerThanOrEqualWindows8_1()) {
+  overrideNotificationWithBalloon();
+}
+else {
+  overrideNotification();
+}