How do I do a clean install of an old Mac?
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How do I do a clean install of an old Mac?
Here are the steps Apple describes:
- Start up your Mac pressing Shift- Option/Alt-Command-R.
- Once you see the macOS Utilities screen choose the Reinstall macOS option.
- Click Continue and follow the on-screen instructions.
- Select your startup disk and click Install.
- Your Mac will restart once the installation is complete.
How do I do a clean install of USB on Mac?
How to wipe your Mac and reinstall macOS
- Make a copy of the macOS installer on a USB stick, reformat your drive and then install the macOS on to your Mac from the installer.
- Use macOS Recovery to reinstall macOS the web.
Can I install Mountain Lion on MacBook Pro?
MacBook (Late 2008 Aluminum, or Early 2009 or newer) MacBook Pro (Mid/Late 2007 or newer) MacBook Air (Late 2008 or newer)
How do I factory reset my macbook pro Mountain Lion?
If you would like to securely erase your data, click Security Options…, adjust the slider accordingly, and click OK. When you’re ready, click Erase…, and then Erase again to erase your disk. When the process completes, quit Disk Utility. Click Reinstall OS X, and then Continue.
How do you reset a Mac lion?
Hold down the “Command” and “R” keys while your Mac is booting. This will allow you to select one of multiple booting options. Select “Recovery HD” when prompted and click the arrow below it to boot into recovery mode. It may take a few minutes to boot into recovery mode.
How do you hard reset a macbook?
Turn on your Mac 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.
How do you reset a macOS?
How do I wipe and reset my MacBook?
From the Apple menu in the corner of your screen, choose System Preferences. From the System Preferences menu in the menu bar, choose Erase All Content and Settings.
