diff --git a/desktop_engine.py b/desktop_engine.py
index de73c91..5b010b3 100644
--- a/desktop_engine.py
+++ b/desktop_engine.py
@@ -18,7 +18,10 @@ APP_DATA_DIR_NAME = "SonicForgeDAW"
 def _pick_port():
     for port in range(PORT_RANGE[0], PORT_RANGE[1] + 1):
         with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
-            s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+            # KHONG dung SO_REUSEADDR: tren Windows no CHO PHEP bind trung port
+            # (2 engine cung 8000 -> request roi vao engine ngau nhien -> UI loi).
+            # Listen socket khong can SO_REUSEADDR (TIME_WAIT chi ap dung cho
+            # connection socket, khong phai listen socket).
             try:
                 s.bind(("127.0.0.1", port))
                 return port