diff --git a/series3_watcher.py b/series3_watcher.py
index d3772c5..b2f72ca 100644
--- a/series3_watcher.py
+++ b/series3_watcher.py
@@ -319,9 +319,12 @@ def run_watcher(state: Dict[str, Any], stop_event: threading.Event) -> None:
     """
     if getattr(sys, "frozen", False):
         here = os.path.dirname(os.path.abspath(sys.executable))
+        _appdata = os.environ.get("LOCALAPPDATA") or os.environ.get("APPDATA") or here
+        config_dir = os.path.join(_appdata, "Series3Watcher")
     else:
         here = os.path.dirname(os.path.abspath(__file__)) or "."
-    config_path = os.path.join(here, "config.ini")
+        config_dir = here
+    config_path = os.path.join(config_dir, "config.ini")
 
     state["status"] = "starting"
     state["units"] = []