Once you’ve gathered up these things, or borrowed them from a friend, coworker or man on the street, then you’re set. A cup of coffee (or beer, water, what have you).An external hard drive (300GB or more) with power cord and Firewire cord (or USB, Thunderbolt, etc.).Make sure your Mac has the juice to handle Mavericks (H/T to Neil Gee for this breakdown if you’re unsure).I’ll make this as easily to understand as I can. Make a backup and you can rest-assured if you blow anything up you have your files. What you need to reformat Macbook Proĭisclaimer: Just be careful. Reinstall MacOS Sierra with your boot driveĪre you ready? Grab the coffee.Reinstall OS X Yosemite with boot drive.Reinstall OS X Mavericks with boot drive.

Back up your Macbook hard drive with Time Machine.What you need to reformat Macbook Pro (this post).You can always refer back to this table of contents for each step. This post serves as the table of the contents of this series: Reformat Macbook Pro to make brand new. This step-by-step guide will help you preserve what’s currently on the drive (for safety sake), wipe it completely clean, reinstall OS X Yosemite (or Mavericks) and make it run like the champion it should be. I just applied this process a few days ago and my laptop is running like I just opened the box from Apple. If you want to reformat Macbook Pro and get it back to what it was like right off the shelf, you’ve come to the right place. And thanks to my endless knack for figuring things out on my own, I’ve clogged up the majority of them with useless software, damaging commands, adware, duplicate files and just about anything else you can add to a hard drive to slow it to a crawwwwl. Update! I have updated this tutorial to include MacOS Sierra which is a free download from Apple for all Mac users.

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