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May 7, 2012 · Reinstall Lion: Select Reinstall Lion and click on the Install button. Note : You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar.
- Overview
- Use Erase All Content and Settings
- If you can't use Erase All Content and Settings
Use Erase All Content and Settings to quickly and securely erase all settings, data, and apps, while maintaining the operating system currently installed.
Erase All Content and Settings is available only in macOS Monterey or later, and only on a Mac with Apple silicon or a Mac with the Apple T2 Security Chip. If this feature isn't available or doesn't work on your Mac:
•To both erase your Mac and reset it to factory settings, follow the steps in what to do before you sell, give away, or trade in your Mac, but disregard the instructions for using Erase All Content and Settings.
•To only erase your Mac without resetting it to factory settings, learn how to erase a Mac with Apple silicon or erase an Intel-based Mac.
•When using Erase All Content and Settings, if you see a message explaining that other volumes need to be erased before you can erase all content and settings, you might have used Boot Camp to install Microsoft Windows. In that case, use Boot Camp to remove Windows and its partition.
If you need help, contact Apple Support.
No matter the model or condition, we can turn your device into something good for you and good for the planet: Learn how to trade in or recycle your Mac with Apple Trade In.
- Reboot the Mac and right after the boot chime sound, hold down the COMMAND + R keys together to boot into Recovery Mode.
- Once in Recovery Mode and at the “macOS Utilities” (or “OS X Utilities”) screen, select “Disk Utility”.
- Choose “Macintosh HD” (or what the Mac drive is named), then select the “Erase” button.
- Choose a name for the erased drive, like ‘Macintosh HD’ and then next to “Format” pull down the drop down menu to select “OS X Extended (Journaled)”, then click on “Erase” when you are ready to completely wipe the Mac – ERASING MEANS EVERYTHING WILL BE REMOVED.
Sep 14, 2010 · Before selling or giving away your BlackBerry, you should reset it to its factory-fresh state. This tutorial will show how to remove your personal information from your BlackBerry device in OS X. Wipe it clean.
You can erase your Mac and use macOS Recovery, the built-in recovery system on your Mac, to reinstall macOS. WARNING: Erasing your Mac removes all the information from it. Before you start, back up your Mac with Time Machine.
Jun 23, 2021 · Mac OS X Lion Installer. System Requirements: OS X Snow Leopard 10.6.6 or later or OS X Lion 10.7. File Size: 4.72 GB. Download. Mac OS X 10.7 Lion is available for older systems that are not compatible with the latest version of macOS and requires the following: Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor.
Jun 24, 2015 · Hold down the power switch for about 3 seconds, until you see a black screen with button choices. Press the "Restart" button at the bottom-right of the display. There's more than one way to do a hard reset, here are the options: Option 1: Power off the device, then power up again.
