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).
Tagged With setup
Hooray. You bought a brand-new Windows laptop and, for whatever reason, the manufacturer was nice enough to let you go through the installation process yourself instead of filling your new system full of crapware for you. Just kidding. It's rare when that happens, and buying a laptop that's full of junk is one -- but certainly not the only -- reason why you might want to reinstall your operating system from scratch.