Can you remember the last time you wiped your MacBook and reinstalled everything? I’d guess somewhere around “never,” but there are plenty of reasons you might want to Exterminatus your system, ranging from the serious (a major error with macOS) to the so-so (your system feels sluggish after all the crap you’ve put on it over the last three years).
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Whether you’re reinstalling from scratch or setting up a brand-new MacBook, there’s a lot to think about during your first few hours with your new (or refreshed) system. Just so you don’t miss any important steps—or quirky little settings that you never knew existed—here’s our guide to everything you need to know about setting up a new MacBook.
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![Stuck Stuck](/uploads/1/2/5/7/125792485/722350610.jpg)
Step One: Starting Over
![Setting Setting](https://www.imore.com/sites/imore.com/files/styles/xlarge_wm_brw/public/field/image/2016/09/macos-sierra-messages-hero.jpg?itok=vae0Zg1a)
If you just purchased a brand-new macBook, power through this paragraph as you power on your new laptop. Otherwise, if you’re looking to wipe and restore your MacBook to a fresh version of the operating system, power up your laptop and hold down ⌘ + R until you boot into the macOS Utilities screen. Use Disk Utility to erase your system volume, and then head back to the primary macOS Utilities screen.
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Click on the wifi icon in the upper-right corner and connect to your wireless network. Then click on “Reinstall macOS.” Get ready.
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Apple will give you a few screens to jump through. The only one that matters is one that asks where you’d like to install macOS. Since you probably only have as single drive in your MacBook, this choice will be easy. After you pick your drive, the waiting game installation begins:
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If you’re a badass, or you just really love Terminal, you can also install apps using Homebrew and Cask. +10 enthusiast points for you.