Turn on your Mac and immediately hold down these four keys at the same time: Option, Command, P, and R. Follow the instructions on the screen and wait for the reinstallation to complete.

To start a restore, back up all your files and then go to disk utility to select the option to “Reinstall OSX”. Restoring your Macbook Air to its original factory state can help fix any problems you encounter with the operating system. Follow the onscreen instructions to complete the restore. Follow On-Screen Instructions: Reinstallation may take 30 minutes to an hour depending on the size of the file.This will restore the operating system to the original factory state. Select “Reinstall OSX”: Once you have opened disk utility, select “Reinstall OSX”.This will allow you to start the system restore. Go to Disk Utility: Once the OSX Utils screen appears, select the utility that says “Disk Utility”.Once the Macbook Air has turned on, hold down the “Command” key and the letter “R” until the Apple logo appears. Restart Your Macbook Air: First go to Apple menu > Restart.This will allow you to restore all your files once you have restored the Macbook Air to its factory state. Create a System Backup: Performs a system backup and a file backup.Once it’s turned off, unplug any power cords, external monitors, mice, keyboards, and other devices. Shut down the Macbook Air: After making sure to download all the updates, turn off your Macbook Air.Updates include security improvements and bug fixes. Download All Mac OSX Updates: Make sure your version of OSX is up to date.How do you format a Mac? How to Restore a Macbook Air to its Factory State Previous steps.What should I do before selling my Mac?.

How to Restore a Macbook Air to its Factory State.

How to restore mac air