Selling your MacBook in optimal conditions means taking precautions in advance. In this file we will show you the specific step-by-step procedure before selling or transferring your Mac. This ranges from backing up your personal data, formatting the disk securely to leaving no traces, when reinstalling a blank Mac OS X for the next buyer. If you are on a computer, see Cleaning your computer before selling the folder – the final way!
Selling your MacBook: Back up your data first
Want to sell your MacBook to buy a new one? In this case, you most likely want to keep your data, personal files, and applications. We invite you to make a backup using Time Machines on an external drive, a NAS such as Synology DiskStation, a Time Capsule, etc. On your new Mac, simply start in Restore mode (Command (⌘) + R) and choose Restore Time Machine to quickly find all your files. Note that it is also possible to clone a disk, ie a perfect full copy of the entire hard disk or SSD (image file or disk to disk copy). For this second method, we refer you to our Cloner El Capitan Mac OS X (10.11) tutorial: Perfect Copy to Disk.
MacBook Sales: Disconnect your iTunes, iCloud, and iMessage accounts
Many users do not think about it, but it is necessary to disconnect the various accounts from iTunes, iCloud, iMessage. Here is the procedure in detail:
iTunes: Remove the access authorization from this computer
Let’s start with iTunes and your Mac: Removing a computer’s permission prevents access to content you’ve purchased in the iTunes Store, iBooks Store, App Store, or Mac App Store (music, movies, TV series, apps, books… .). To understand correctly, start iTunes. Go to the Store menu and click the Remove Access Authorization submenu from this computer …
iCloud: Disconnect services
Most likely, you use iCloud and its many services (Find My Mac, Photos, iCloud Drive …). Therefore, you need to disconnect this MacBook from iCloud data. To do this, go to the Apple Menu, System Preferences, and clear the Locate my Mac check box, then sign out of iCloud. After you sign out, you can choose to delete iCloud data from your computer. Don’t be afraid ! Your iCloud data will be stored for all other devices that use the same Apple ID (iPhone / iPad, Apple TV …).
Selling a MacBook: Erase / format the disk or SSD
Obviously, you need to format your MacBook drive using Disk Utility in Recovery mode before transferring it. We refer you to our reference tutorial How to format your MacBook Pro / Air. If there is anything to remember, it is absolutely essential to prefer a slower and safer wipe than the simple but more powerful standard format. This will prevent the next user from recovering deleted data without your knowledge and without hiding …
Sell your MacBook: Reinstall Mac OS X.
Your new MacBook owner should find a Mac preinstalled at startup, where they just need to enter their username and password. Let’s make it easier!
There are two options available to you and therefore to him. Reinstall your MacBook as it was originally installed on the Internet. In this first case, if the MacBook came with Lion, it will be reinstalled with OS X Lion, if it was with Mountain Lion, you will find this OS X, the same for later versions Mavericks, Yosemite, El Capitan .. .
Reinstall the latest version of Mac OS X.
Suppose you want to provide your MacBook with the latest versions of Mac OS X. In this case, you’ll need to create a USB key for a clean install of Mac OS X El Capitan (for example). You will reinstall the system, taking care to stop at the step of entering the username and password (the on / off button for a few seconds to turn it off). Our three tutorials will show you two different techniques for creating a bootable USB key:
Bootable El Capitan (OS X 10.11): Create an installation USB disk
El Capitan (OS X 10.11): Create a USB installation key (DiskMaker X 5)
Clean installation of Mac OS X El Capitan (10.11)