reminder

This popup called "windows login reminder" keeps coming up and I want to know how to get rid of it. I have watched some videos but they don't look promising on how to put "password never expires". Could anyone help me "fix" this?

I forget to turn off my pc and it runs all night. And I don't turn my pc on every day, so I can't just set a daily alarm on my phone, or else it'd be annoying. So, if my PC is on and its 10pm, I want it to send me a notification to my Android Phone and/or Windows Laptop. Is that possible? I...