diff --git a/sgbackup/epic.py b/sgbackup/epic.py
index 0d24ea3..5a559f7 100644
--- a/sgbackup/epic.py
+++ b/sgbackup/epic.py
@@ -175,8 +175,13 @@ class Epic(GObject):
         return None
     
     def parse_all_manifests(self)->list[EpicGameInfo]:
-        manifest_dir=os.path.join(settings.epic_datadir,'Manifests')
         ret = []
+        if not settings.epic_datadir:
+            print("NO EPIC DATADIR")
+            return ret
+        
+        manifest_dir=os.path.join(settings.epic_datadir,'Manifests')
+        
         for item in [ i for i in os.listdir(manifest_dir) if i.endswith('.item') ]:
             manifest_file = os.path.join(manifest_dir,item)
             info = self.parse_manifest(manifest_file)
diff --git a/sgbackup/gui/_app.py b/sgbackup/gui/_app.py
index 2636cac..ca2d2d6 100644
--- a/sgbackup/gui/_app.py
+++ b/sgbackup/gui/_app.py
@@ -1217,7 +1217,7 @@ class AppWindow(Gtk.ApplicationWindow):
                 
         Gtk.ApplicationWindow.__init__(self,**kwargs)
         self.set_default_size(800,700)
-        self.set_icon_name('org.sgbackup.sgbackup-symbolic')
+        self.set_icon_name('sgbackup-symbolic')
         
         self.__builder = builder
         self.builder.add_from_file(os.path.join(os.path.dirname(__file__),'appmenu.ui'))
@@ -1457,6 +1457,7 @@ class Application(Gtk.Application):
         """
         do_activate This method is called, when the application is activated.
         """
+        self.set_default()
         self._logger.debug('do_activate()')
         if not (self.__appwindow):
             self.__appwindow = AppWindow(application=self)
diff --git a/sgbackup/settings.py b/sgbackup/settings.py
index 66d1957..3ea323e 100644
--- a/sgbackup/settings.py
+++ b/sgbackup/settings.py
@@ -55,6 +55,8 @@ del _zc
 del _zs
 
     
+if PLATFORM_WINDOWS:
+    import winreg
 class Settings(GObject.GObject):
     __gtype_name__ = "Settings"
     
diff --git a/sgbackup/utility.py b/sgbackup/utility.py
index 3ba735d..36fa003 100644
--- a/sgbackup/utility.py
+++ b/sgbackup/utility.py
@@ -33,9 +33,9 @@ def _platform_is_unix():
             return True
     return False
 
-PLATFORM_WINDOWS = (sys.platform == 'win32')
+PLATFORM_WINDOWS = bool(sys.platform == 'win32')
 PLATFORM_LINUX = _platform_is_linux()
-PLATFORM_MACOS = (sys.platform == 'darwin')
+PLATFORM_MACOS = bool(sys.platform == 'darwin')
 PLATFORM_UNIX = _platform_is_unix()
 
 del _platform_is_unix