In the second phase, you reset your MacBook Pro to the factory defaults. The process may take considerable amount of time, depending on the data on your hard drive it has to decrypt. Note: If you have enabled FileVault, you should also consider turning it off before proceeding by going to Apple menu > System Preferences > Security & Privacy > FileVault. That said, the entire process can be completed in two phases where in the first phase, you back up your data using Time Machine or any other program of your choice, de-authorize your computer and sign out from iTunes, and sign out of iCloud. You may want to factory reset your MacBook Pro if has become sluggish, the important settings are completely messed up and can’t be restored back to normal due to the complexities, or some corrupt app or system files have made your computer behave obnoxiously.Īlthough resetting your MacBook Pro to factory defaults is simple, there are some preliminary steps that you must take to ensure smooth transition (from the current OS to the fresh installed one) and to keep your data safe.

Apple macbook pro a1286 hard reset