Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. Release the keys after about 20 seconds. This clears user settings from memory and restores certain security features that might have been altered.
Additionally, how do I erase my MacBook Air and start over?
- Restart your computer: hold the power button > select Restart when it appears.
- While the computer restarts, hold down the ‘Command’ and ‘R’ keys.
- Once you see the Apple logo appear, release the ‘Command and R keys’
- When you see a Recovery Mode menu, select Disk Utility.
Also, how do I remove previous owner from MacBook Air?
- Select System Preferences from the Apple menu, click the Accounts icon, click the Lock icon, and enter your password.
- Select Logout from the Apple menu.
- On your new computer, triple-check that all the files for all accounts on the old machine have been transferred.
Subsequently, how do you wipe out a Mac?
- Turn on your Mac and continue to press and hold the power button until the startup options window comes up.
- When the Utilities window appears, select Disk Utility.
- In the sidebar, choose Macintosh HD.
- Click the “Erase” button, then select a file system format and enter a name for it.
People ask also, how do I prepare my Mac for someone else?
- 1) Back Up Your Data.
- 2) Sign Out of iTunes.
- 3) Sign Out of iCloud.
- 4) Remove the Mac from Apple Support Registration.
- 5) Sign Out of Messages.
- 6) Erase the Mac and Reinstall macOS.
- 7) What To Do Once macOS is Reinstalled.
- Hold down the Command and R keys on the keyboard and turn on the Mac.
- Select your language and continue.
- Choose Disk Utility and click Continue.
- Choose your startup disk (named Macintosh HD by default) from the sidebar and click the Erase button.
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How do you master reset a MacBook Air?
To hard reset a MacBook Air, restart the MacBook and simultaneously press the Option, Command, P, and R keys. Hold down the keys for about 20 seconds.
How do I delete administrator on MacBook Air?
- Locate Users & Groups on the bottom left.
- Select the padlock icon.
- Enter your password.
- Select the admin user on the left and then select the minus icon near the bottom.
- Choose an option from the list and then select Delete User.
How do I force a Mac to delete a user?
- Make sure you’re logged in to a user account with admin priviledges.
- Open System Preferences and click Users.
- Select the account you’d like to delete and tap the – icon just under Login Options.
- Choose whether you’d like to save or delete the home folder.
- Click Delete User.
How do I reset a used MacBook?
How do I reset my Mac desktop to factory settings?
To reset your Mac, first restart your computer. Then press and hold Command + R until you see the Apple logo. Next, go to Disk Utility > View > View all devices, and choose the top drive. Next, click Erase, fill out the required details, and hit Erase again.
How do you hard reset a MacBook pro?
- To force a restart your MacBook, you need to press and hold down the Command (⌘) button, the Control (Ctrl) key, and the power button at the same time.
- Hold these keys down until your MacBook’s screen goes blank and the computer restarts itself.
How do I restore my MacBook Air 2011 to factory settings?
How do you transfer ownership of a MacBook Air?
- Create new administrator account in System Preferences > Users & Groups. (
- Log out of current user and login with new admin account.
- Change the name of the original user’s home directory ‘/Users/original’ to the new desired short name ‘/Users/new’
How do I clean my Mac computer to sell it?
- Create a backup.
- Sign out of iTunes in macOS Mojave or earlier.
- Sign out of iCloud.
- Sign out of iMessage.
- Reset NVRAM.
- Optional: Unpair Bluetooth devices that you’re keeping.
- Erase your hard drive and reinstall macOS.
How do you restore Internet on a Mac?
- Shut down your Mac.
- Hold down Command-Option/Alt-R and press the Power button.
- Hold down those keys until you a spinning globe and the message “Starting Internet Recovery.
- The message will be replaced with a progress bar.
- Wait for the MacOS Utilities screen to appear.