I make sure the important stuff is backed up to external drive on the computers I tech support for family and friends.

So I say, “yeah, it says that, but they are lying. unplug it. If it’s not working when it comes back on, I’ll come over and restore it. You won’t lose anything, we’ve got backups just for this reason.”

So far, I haven’t had to go and restore anything. But one of them buys me lunch, so I go and shoot the shit and have a good time for big Windows updates about once a quarter.