diff --git a/VRCT.py b/VRCT.py
index ef7f2230..e7b0c545 100644
--- a/VRCT.py
+++ b/VRCT.py
@@ -88,6 +88,7 @@ class App(CTk):
         self.ENABLE_AUTO_CLEAR_CHATBOX = False
         self.ENABLE_OSC = False
         self.ENABLE_NOTICE_XSOVERLAY =False
+        self.UPDATE_FLAG = False
 
         # load config
         if os_path.isfile(self.PATH_CONFIG) is not False:
@@ -426,19 +427,11 @@ class App(CTk):
         # check osc started
         send_test_action()
 
-        # auto update
+        # check update
         response = requests_get("https://api.github.com/repos/misyaguziya/VRCT/releases/latest")
         tag_name = response.json()["tag_name"]
         if tag_name != __version__:
-            url = response.json()["assets"][0]["browser_download_url"]
-            res = requests_get(url, stream=True)
-            os_makedirs("./tmp", exist_ok=True)
-            with open("./tmp/download.zip", 'wb') as file:
-                for chunk in res.iter_content(chunk_size=1024):
-                    file.write(chunk)
-            unpack_archive('./tmp/download.zip', './tmp')
-            command = "update.cmd"
-            subprocess.Popen(command.split())
+            self.UPDATE_FLAG = True
 
     def button_config_callback(self):
         self.foreground_stop()
diff --git a/update.cmd b/update.cmd
deleted file mode 100644
index 6d5587d1..00000000
--- a/update.cmd
+++ /dev/null
@@ -1,15 +0,0 @@
-set "current_dir=%CD%"
-taskkill /im VRCT.exe /F
-timeout 2
-for /d /r %%i in (*) do (
-    set "folder=%%i"
-    set "folder=!folder:%current_dir%\=!"
-    if "!folder!" neq "\tmp\" (
-        rd /s /q "%%i"
-    )
-)
-timeout 2
-xcopy /s /e /y ".\tmp\VRCT\*" ".\"
-timeout 2
-for /f "delims=" %%i in ('dir /b /s /ad "%current_dir%\tmp"') do rd /s /q "%%i"
-VRCT.exe
\ No newline at end of file