diff --git a/integration_tests/conftest.py b/integration_tests/conftest.py
index 5cab15f15..54d9230ce 100644
--- a/integration_tests/conftest.py
+++ b/integration_tests/conftest.py
@@ -1,40 +1,67 @@
+import signal
+import sys
+from typing import List
 import pytest
 import subprocess
 import pathlib
 import os
 import time
 
+def spawn_process(command: List[str]) -> subprocess.Popen:
+    if sys.platform.startswith("win32"):
+        command[0] = "python"
+        process = subprocess.Popen(command, shell=True, creationflags=subprocess.CREATE_NEW_PROCESS_GROUP)
+        return process
+    process = subprocess.Popen(command, preexec_fn=os.setsid)
+    return process 
+    
 
-@pytest.fixture
+
+def kill_process(process: subprocess.Popen) -> None:
+    if sys.platform.startswith("win32"):
+        process.send_signal(signal.CTRL_BREAK_EVENT)
+        process.kill()
+        return     
+    os.killpg(os.getpgid(process.pid), signal.SIGKILL)
+    
+        
+       
+        
+@pytest.fixture(scope="session")
 def session():
     os.environ["ROBYN_URL"] = "127.0.0.1"
     current_file_path = pathlib.Path(__file__).parent.resolve()
     base_routes = os.path.join(current_file_path, "./base_routes.py")
-    process = subprocess.Popen(["python3", base_routes])
+    command = ["python3", base_routes]
+    process = spawn_process(command)
     time.sleep(5)
     yield
-    process.terminate()
+    kill_process(process)
+    
+
 
 
-@pytest.fixture
+@pytest.fixture(scope="session")
 def default_session():
     current_file_path = pathlib.Path(__file__).parent.resolve()
     base_routes = os.path.join(current_file_path, "./base_routes.py")
-    process = subprocess.Popen(["python3", base_routes])
+    command = ["python3", base_routes]
+    process = spawn_process(command)
     time.sleep(5)
     yield
-    process.terminate()
+    kill_process(process)
 
 
-@pytest.fixture
+@pytest.fixture(scope="session")
 def global_session():
     os.environ["ROBYN_URL"] = "0.0.0.0"
     current_file_path = pathlib.Path(__file__).parent.resolve()
     base_routes = os.path.join(current_file_path, "./base_routes.py")
-    process = subprocess.Popen(["python3", base_routes])
+    command = ["python3", base_routes]
+    process = spawn_process(command)
     time.sleep(1)
     yield
-    process.terminate()
+    kill_process(process)
 
 
 @pytest.fixture(scope="session")
@@ -43,8 +70,8 @@ def dev_session():
     os.environ["ROBYN_PORT"] = "5001"
     current_file_path = pathlib.Path(__file__).parent.resolve()
     base_routes = os.path.join(current_file_path, "./base_routes.py")
-    process = subprocess.Popen(["python3", base_routes, "--dev"])
+    command = ["python3", base_routes, "--dev"]
+    process = spawn_process(command)
     time.sleep(5)
     yield
-    process.terminate()
-
+    kill_process(process)
\ No newline at end of file