diff --git a/portprotonqt/app.py b/portprotonqt/app.py
index 69fb1f9..e475b85 100644
--- a/portprotonqt/app.py
+++ b/portprotonqt/app.py
@@ -36,7 +36,7 @@ def main():
 
     # Обработка флага --fullscreen
     if args.fullscreen:
-        logger.info("Запуск в полноэкранном режиме по флагу --fullscreen")
+        logger.info("Launching in fullscreen mode due to --fullscreen flag")
         save_fullscreen_config(True)
         window.showFullScreen()
 
@@ -47,13 +47,28 @@ def main():
 
     def recreate_tray():
         nonlocal tray
-        tray.hide_tray()
+        if tray:
+            logger.debug("Recreating system tray")
+            tray.cleanup()
+            tray = None
         current_theme = read_theme_from_config()
         tray = SystemTray(app, current_theme)
         tray.show_action.triggered.connect(window.show)
         tray.hide_action.triggered.connect(window.hide)
 
+    def cleanup_on_exit():
+        nonlocal tray, window
+        app.aboutToQuit.disconnect()  # Disconnect to prevent further calls
+        if tray:
+            tray.cleanup()
+            tray = None
+        if window:
+            window.close()
+            window = None
+        app.quit()
+
     window.settings_saved.connect(recreate_tray)
+    app.aboutToQuit.connect(cleanup_on_exit)
 
     window.show()
 
diff --git a/portprotonqt/main_window.py b/portprotonqt/main_window.py
index 7897bc3..3f52448 100644
--- a/portprotonqt/main_window.py
+++ b/portprotonqt/main_window.py
@@ -1852,14 +1852,46 @@ class MainWindow(QMainWindow):
             self.checkProcessTimer.start(500)
 
     def closeEvent(self, event):
+        """Завершает все дочерние процессы и сохраняет настройки при закрытии окна."""
+        # Завершаем все игровые процессы
         for proc in self.game_processes:
             try:
+                parent = psutil.Process(proc.pid)
+                children = parent.children(recursive=True)
+                for child in children:
+                    try:
+                        logger.debug(f"Terminating child process {child.pid}")
+                        child.terminate()
+                    except psutil.NoSuchProcess:
+                        logger.debug(f"Child process {child.pid} already terminated")
+                psutil.wait_procs(children, timeout=5)
+                for child in children:
+                    if child.is_running():
+                        logger.debug(f"Killing child process {child.pid}")
+                        child.kill()
+                logger.debug(f"Terminating process group {proc.pid}")
                 os.killpg(os.getpgid(proc.pid), signal.SIGTERM)
-            except ProcessLookupError:
-                pass  # процесс уже завершился
+            except (psutil.NoSuchProcess, ProcessLookupError) as e:
+                logger.debug(f"Process {proc.pid} already terminated: {e}")
 
+        self.game_processes = []  # Очищаем список процессов
+
+        # Сохраняем настройки окна
         if not read_fullscreen_config():
+            logger.debug(f"Saving window geometry: {self.width()}x{self.height()}")
             save_window_geometry(self.width(), self.height())
-
         save_card_size(self.card_width)
+
+        # Очищаем таймеры и другие ресурсы
+        if hasattr(self, 'games_load_timer') and self.games_load_timer.isActive():
+            self.games_load_timer.stop()
+        if hasattr(self, 'settingsDebounceTimer') and self.settingsDebounceTimer.isActive():
+            self.settingsDebounceTimer.stop()
+        if hasattr(self, 'searchDebounceTimer') and self.searchDebounceTimer.isActive():
+            self.searchDebounceTimer.stop()
+        if hasattr(self, 'checkProcessTimer') and self.checkProcessTimer and self.checkProcessTimer.isActive():
+            self.checkProcessTimer.stop()
+            self.checkProcessTimer.deleteLater()
+            self.checkProcessTimer = None
+
         event.accept()
diff --git a/portprotonqt/tray.py b/portprotonqt/tray.py
index ba6ea0f..281c790 100644
--- a/portprotonqt/tray.py
+++ b/portprotonqt/tray.py
@@ -7,12 +7,13 @@ from portprotonqt.config_utils import read_theme_from_config
 
 class SystemTray:
     def __init__(self, app, theme=None):
+        self.app = app
         self.theme_manager = ThemeManager()
         self.theme = theme if theme is not None else default_styles
         self.current_theme_name = read_theme_from_config()
         self.tray = QSystemTrayIcon()
         self.tray.setIcon(cast(QIcon, self.theme_manager.get_icon("ppqt-tray", self.current_theme_name)))
-        self.tray.setToolTip("PortProton QT")
+        self.tray.setToolTip("PortProtonQt")
         self.tray.setVisible(True)
 
         # Создаём меню
@@ -32,4 +33,16 @@ class SystemTray:
 
     def hide_tray(self):
         """Скрыть иконку трея"""
-        self.tray.hide()
+        if self.tray:
+            self.tray.setVisible(False)
+            self.tray.setContextMenu(None)
+
+    def cleanup(self):
+        """Очистка ресурсов трея"""
+        self.hide_tray()
+        if self.menu:
+            self.menu.deleteLater()
+            self.menu = None
+        if self.tray:
+            self.tray.deleteLater()
+            self.tray = None