[Docs] Windows batch autostart docs (#5996)

docs/autostart_windows.rst

@@ -0,0 +1,48 @@
+.. _autostart_windows:
+
+==============================================
+Setting up auto-restart using batch on Windows
+==============================================
+
+.. note:: This guide assumes that you already have a working Red instance.
+
+-----------------------
+Creating the batch file
+-----------------------
+
+Create a new text document anywhere you want to. This file will be used to launch the bot, so you may want to put it somewhere convenient, like Documents or Desktop.
+
+Open that document in Notepad, and paste the following text in it:
+
+.. code-block:: batch
+    
+    @ECHO OFF
+    :RED
+    CALL "%userprofile%\redenv\Scripts\activate.bat"
+    python -O -m redbot <your instance name>
+
+    IF %ERRORLEVEL% NEQ 0 (
+        ECHO Restarting Red...
+        GOTO RED
+    )
+
+Replace ``<your instance name>`` with the instance name of your bot.
+If you created your VENV at a location other than the recommended one, replace ``%userprofile%\redenv\Scripts\activate.bat`` with the path to your VENV.
+
+Click "File", "Save as". Change the dropdown "Save as type" to "All Files (*.*)". Set the filename to ``start_redbot.bat``, and click save.
+
+There should now be a new file in the location you created the text document in. You can delete that text document as it is no longer needed.
+You can now use the ``start_redbot.bat`` batch file to launch Red by double clicking it.
+This script will automatically restart red when the ``[p]restart`` command is used or when the bot shuts down abnormally.
+
+-------------------------
+Launch the bot on startup
+-------------------------
+
+Create a shortcut of your ``start_redbot.bat`` file.
+
+Open the "Run" dialogue box using Windows Key + R.
+
+Enter ``shell:startup`` if you want the bot to launch only when the current user logs in, or ``shell:common startup`` if you want the bot to launch when any user logs in.
+
+Drag the shortcut into the folder that is opened. The bot will now launch on startup.

docs/index.rst

@@ -16,8 +16,9 @@ Welcome to Red - Discord Bot's documentation!
     bot_application_guide
     update_red
     about_venv
-    autostart_systemd
+    autostart_windows
     autostart_mac
+    autostart_systemd
 
 .. toctree::
     :maxdepth: 2