Resetting your MacBook to the factory settings will become necessary in many situations. For instance, when your MacBook is infected by malware or some poorly written application might corrupt your OS X settings, in these cases your MacBook becomes unstable and might refuse to boot. One other situation is that when you are planning to sell or give away your MacBook to someone else. In all these cases you will have to reset your MacBook to its factory settings. This is because, resetting to the factory settings will erase all the contents (i.e. all your private or sensitive data) stored on your MacBook and creates clean slate.
In this page, you will find the detailed steps to be followed to reset your MacBook to the factory settings. Actually, it can be done in two ways, using the restore CD and other without using the CD i.e. via internet. However, here I have given the steps for both the ways. Below are the steps to be followed:
Using Restore DVD:
(1) Back up all your important documents or personal data files into any external device before resetting the MacBook's factory default settings (Mandatory)
(2) Start Computer up, holding OPTION key
(3) You should now see two hard drive icons, select the one labeled “Recovery”
(4) Insert your MacBook restore DVD 1 into your computer and restart the machine. Hold down “C” as the computer boots so it will boot from the disc.
(5) Now choose your language and click “Continue”
(6) Click on Disk Utility and choose Macintosh option from it
(7) Hit the “Options” tab from your Select a Destination window
(8) Choose “Erase and Install” and hit “Continue” key
(9) Now your Disc will be erased completely
(10) Choose “Basic Install”, select the “Install” option. Once the install is complete, your MacBook will be reset to its factory settings.
Reset MacBook without CD / DVD
Step 1: Back up all your important documents or personal data files into any external device before resetting the MacBook's factory default settings (Mandatory).
Step 2: Now, connect the Ethernet to your MacBook or ensure that you have the network login credentials for accessing your Wi-Fi router.
Step 3: Shutdown the laptop and restart the MacBook. Once, the MacBook starts rebooting, press and hold the “Command + R” keys. Hold the key until a screen with “Apple” icon appears after which a “Mac OS X Utilities” window appears on the screen.
Step 4: Select the “Wi-Fi menu item” from the Mac OS X Utilities window and provide the proper network credentials for it.
Step 5: then click on either "OS X Recovery" or "Internet Recovery" icon form the Mac OS X Utilities window (icon depends on the version of the Mac OS X installed).
Step 6: Click on the “Reinstall OS X” option, after few seconds, your MacBook will be connected to the Apple servers on the internet, provide proper credentials if prompted.
Step 7: Once the connection is done, MacBook downloads the latest version of the Mac OS X compatible with the laptop and other supporting applications, OS X Recovery or internet Recovery partitions and then your MacBook will be formatted to erase your disk and reinstalls all the components automatically.
Step 8: Click on “Restart” button from the Mac OS X Utilities window, wait until your MacBook reboots and login with proper Apple user credentials and now you will find that your MacBook will be reset to its original factory settings.
Now, your MacBook will be reset to its default factory settings. As mentioned earlier you need to be extra careful while performing this, since it involves erasing of your vital files from your MacBook. Do not forget to take the data backup and store it in a healthy location. In case if you forget or neglect taking the backup you will lose all your data from your MacBook laptops. If you encounter such data loss situation, don’t worry, you can easily recover all of them. You can make use of Remo Recover Mac software and recover all your data that were lost while resetting the MacBook. However, be cautious and take data backup before resetting your MacBook laptop.
Click on the given link to perform MacBook Pro data recovery.