How do I turn off reboot nag message?

I don’t want to reboot my computer, since the last time I did I got a lot of headaches. So, how do I turn off that nagging reboot message that keeps popping up?

Hmmm… Are they from avast or from Windows?
If they come to avast, maybe each virus definitions update is triggering for the reboot…

The nag messages are from avast, and it started after a software update. I wish their software would update without needing a reboot.

It’s impossible. It’s a Windows restriction also.