diff --git a/launch/launch/launcher.py b/launch/launch/launcher.py
index 95ab4667d..906b11950 100644
--- a/launch/launch/launcher.py
+++ b/launch/launch/launcher.py
@@ -53,8 +53,9 @@ def launch(self):
         asyncio.set_event_loop(loop)
         returncode = loop.run_until_complete(self._run())
         loop.close()
-        # the watcher must be reset otherwise a repeated invocation fails inside asyncio
-        asyncio.get_event_loop_policy().set_child_watcher(None)
+        if os.name != 'nt':
+            # the watcher must be reset otherwise a repeated invocation fails inside asyncio
+            asyncio.get_event_loop_policy().set_child_watcher(None)
 
         return returncode