diff --git a/dislocker_client.py b/dislocker_client.py
index 5b5b589..f2933f9 100644
--- a/dislocker_client.py
+++ b/dislocker_client.py
@@ -39,12 +39,16 @@ elif os.path.isfile(client_config_path):
         client_config = json.load(r)
 
 def init(**kwargs):
-    #sp_startupinfo = subprocess.STARTUPINFO()
-    #sp_startupinfo.dwFlags = subprocess.STARTF_USESHOWWINDOW
-    #sp_startupinfo.wShowWindow = subprocess.SW_HIDE
-    #task_exist = subprocess.run('tasklist /fi "IMAGENAME eq dislocker_client.exe"', startupinfo=sp_startupinfo, stdout=subprocess.PIPE, text=True)
-    #if 'dislocker_client.exe' in task_exist.stdout:
-        #return 1
+    sp_startupinfo = subprocess.STARTUPINFO()
+    sp_startupinfo.dwFlags = subprocess.STARTF_USESHOWWINDOW
+    sp_startupinfo.wShowWindow = subprocess.SW_HIDE
+    task_exist = subprocess.run('tasklist /fi "IMAGENAME eq dislocker_client.exe"', startupinfo=sp_startupinfo, stdout=subprocess.PIPE, text=True)
+    if 'dislocker_client.exe' in task_exist.stdout:
+        task_count = task_exist.stdout.count("dislocker_client.exe")
+        if task_count == 1:
+            pass
+        else:
+            return 1
 
     if client_config["initial"] == 1:
         master_password = master_password_gen()
@@ -60,7 +64,6 @@ def init(**kwargs):
         return 2
     else:
         return 0
-    
 
 
 class App(customtkinter.CTk):