2 files changed, 12 insertions, 4 deletions

diff --git a/g4f/locals/provider.py b/g4f/locals/provider.py
index 45041539..d9d73455 100644
--- a/g4f/locals/provider.py
+++ b/g4f/locals/provider.py
@@ -66,9 +66,12 @@ class LocalProvider:
             if message["role"] != "system"
         ) + "\nASSISTANT: "
 
+        def should_not_stop(token_id: int, token: str):
+            return "USER" not in token
+
         with model.chat_session(system_message, prompt_template):
             if stream:
-                for token in model.generate(conversation, streaming=True):
+                for token in model.generate(conversation, streaming=True, callback=should_not_stop):
                     yield token
             else:
-                yield model.generate(conversation)
\ No newline at end of file
+                yield model.generate(conversation, callback=should_not_stop)
\ No newline at end of file
diff --git a/g4f/providers/base_provider.py b/g4f/providers/base_provider.py
index 86789ec2..cb60d78f 100644
--- a/g4f/providers/base_provider.py
+++ b/g4f/providers/base_provider.py
@@ -19,8 +19,13 @@ else:
 
 # Set Windows event loop policy for better compatibility with asyncio and curl_cffi
 if sys.platform == 'win32':
-    if isinstance(asyncio.get_event_loop_policy(), asyncio.WindowsProactorEventLoopPolicy):
-        asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
+    try:
+        from curl_cffi import aio
+        if not hasattr(aio, "_get_selector"):
+            if isinstance(asyncio.get_event_loop_policy(), asyncio.WindowsProactorEventLoopPolicy):
+                asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
+    except ImportError:
+        pass
 
 def get_running_loop(check_nested: bool) -> Union[AbstractEventLoop, None]:
     try: