diff --git a/dislocker_client.py b/dislocker_client.py
index 1e6d213..b8a65cc 100644
--- a/dislocker_client.py
+++ b/dislocker_client.py
@@ -4,9 +4,7 @@ import json
 import customtkinter
 from winotify import Notification, audio
 import keyboard
-import wmi
 import subprocess
-import asyncio
 
 class App(customtkinter.CTk):
     def __init__(self):
@@ -20,11 +18,12 @@ class App(customtkinter.CTk):
         self.restore_button = customtkinter.CTkButton(self.frame, text='認証ウィンドウを再表示', command=self.handler_close, width=240)
         self.restore_button.grid(row=0, column=0)
         
-        asyncio.run(self.task_watcher_run())
+        self.block_taskmgr
         self.block_key()
         lock = Lock()
 
     def exit(self):
+        self.unlock_taskmgr()
         self.toast()
         self.destroy()
 
@@ -33,6 +32,12 @@ class App(customtkinter.CTk):
         for i in block_keys:
             keyboard.block_key(i)
 
+    def block_taskmgr(self):
+        subprocess.run(['reg', 'add', 'HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System', '/v', 'DisableTaskMgr', '/t', 'REG_DWORD', '/d', '1'])
+
+    def unlock_taskmgr(self):
+        subprocess.run(['reg', 'delete', 'HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System', '/v', 'DisableTaskMgr', '/f'])
+
     def toast(self):
         resource_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), "resource")
         success = Notification(
@@ -44,24 +49,6 @@ class App(customtkinter.CTk):
         success.set_audio(audio.Default, loop=False)
         success.show()
 
-    async def task_watcher_run(self):
-        taskmgr_killer = asyncio.create_task(self.task_watcher())
-
-    async def task_watcher(self):
-        c=wmi.WMI()
-        cre_process_watcher=c.Win32_Process.watch_for("creation")
-        del_process_watcher=c.Win32_Process.watch_for("deletion")
-        
-        self.i = 1
-
-        while self.i == 1:
-            new_cre_process=cre_process_watcher()
-            new_del_process=del_process_watcher()
-            print(new_cre_process.Caption+" has been created")
-            if new_cre_process.Caption == "Taskmgr.exe":
-                taskmgr_kill = subprocess.run(['taskkill', '/im', 'Taskmgr.exe'])
-            print(new_del_process.Caption+" has been deleted ")
-
     def handler_close(self):
         pass
     
@@ -120,9 +107,6 @@ class Lock(customtkinter.CTkToplevel):
     def exit(self):
         self.destroy()
 
-    
-
-
 
 config_dir_path = "./config/"
 db_config_path = config_dir_path + "db.json"
@@ -147,3 +131,4 @@ if __name__ == '__main__':
     app = App()
     app.protocol("WM_DELETE_WINDOW", app.handler_close)
     app.mainloop()
+