How to stop annoying High Sierra upgrade prompts in macOS

At 3:28PM ET I made a discovery that will change humanity for the better. Okay, maybe not humanity, but it will certainly make my life better.

I’m using a 2015 MacBook Pro. I bought it last fall because I needed a new computer, and because I need to plug things in all the time, I didn’t want any of the new Macs. This meant that my new old computer came installed with macOS Sierra 10.12.1. I’ve heard nothing but bad things about High Sierra so I’ve been holding off.

But macOS doesn’t want me to hold off. I keep getting these notifications telling me to upgrade. I just want them to stop. You can’t even dismiss the notification: you have to click either “Install” or “Details.” And the details option just opens the Mac App Store… a place no one wants to go.

Today, I found myself in the good old Mac App Store after trying to dismiss another notification and came face to face with the High Sierra banner, imploring me to upgrade. Trying to deal with this annoyance, I right clicked on the banner. To my surprise, I was given a prompt to “Hide Update”! Shocked, I took a screenshot.

Could this be what I have been looking for? Could this stop the annoying notifications to upgrade to an OS I don’t want on my new old computer?

A Google search tells me yes, this could be the answer!

And I wanted to share it with you. All of you lovely people. Go, open the Mac App Store for one last time, and get rid of that notification forever. Maybe. I’m actually not 100 percent sure this will work. And then I’ll probably have to do the whole thing over again when Apple releases macOS Higher Sierra.