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How do I do a clean install of OSX from USB?
Here’s how to format your USB drive correctly:
- Plug in the USB drive.
- Go to Applications > Utilities.
- Open Disk Utility.
- Select the drive and click Erase. …
- Select Mac OS Extended (Journaled) as the format type.
How do I reinstall Mac OS manually?
Install macOS
- Choose Reinstall macOS (or Reinstall OS X) from the utilities window.
- Click Continue, then follow the onscreen instructions. You’ll be asked to select your disk. If you don’t see it, click Show All Disks. …
- Click Install. Your Mac restarts after installation is complete.
How do I reinstall OSX High Sierra from USB?
Create a bootable macOS installer
- Download macOS High Sierra from the App Store. …
- When it’s finished, the installer will launch. …
- Plug in the USB stick and launch Disk Utilities. …
- Click the Erase tab and make sure Mac OS Extended (Journaled) is selected in the format tab.
- Give the USB stick a name, then click Erase.
How do I reinstall OSX without recovery mode?
Start up your Mac from a shut down state or restart it, then immediately hold down Command-R. The Mac should recognize that there’s no macOS Recovery partition installed, show a spinning globe. You should then be prompted to connect to a Wi-Fi network, and you enter a password.
How do I reinstall OSX without disc?
The procedure is as follows:
- Turn your Mac on, while holding the CMD + R keys down.
- Select “Disk Utility” and click on Continue.
- Select the startup disk and go to the Erase Tab.
- Select the Mac OS Extended (Journaled), give a name to your disk and click on Erase.
- Disk Utility > Quit Disk Utility.
Will I lose data if I reinstall macOS?
2 Answers. Reinstalling macOS from the recovery menu does not erase your data. However, if there is a corruption issue, your data may be corrupted as well, its really hard to tell. … Reinatalling the os alone does not erase data.
How do I reinstall macOS Online?
How to use Internet Recovery to reinstall macOS
- 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.
How do I reinstall OSX without Internet?
Installing a fresh copy of macOS via Recovery Mode
- Restart your Mac while holding down the ‘Command+R’ buttons.
- Release these buttons as soon as you see the Apple logo. Your Mac should now boot into Recovery Mode.
- Select ‘Reinstall macOS,’ and then click ‘Continue. ‘
- If prompted, enter your Apple ID.