How to back up and wipe your Mac
As slick and polished as macOS is, it can slow down over time, as you add file after file and program after program to your Apple system. After a few years of heavy use, the idea of wiping your Mac and starting again from a factory-fresh clean slate starts to make more and more sense.
This isn’t just something to do if you want to clear out the clutter and fix persistent problems, though: resetting your Mac is also important when you’re selling it or passing it on. You don’t want anyone else poking around in your files or your web browsing data, and a reset stops that from happening.
Resetting a Mac is fairly straightforward, but you do need to make sure everything on it is backed up before you get started (or at least everything you…
