To schedule a custom notification with this method, launch Windows Search (press Windows+S), type Task Scheduler, and open the utility. From the menu bar, select Action > Create Basic Task.

On the Create Basic Task Wizard window, click the "Name" field and type a name for the task (something like Automatic Shutdown). Optionally, type a description for the task.

If you want to speed up your workflow in Windows, you can automate tasks using Task Scheduler or Microsoft's Power Automate app.

If you want to automate a task, just create a PowerShell script and schedule it. To know more, check out the instructions mentioned here.