Why won’t my Mac let me reinstall OS X?

Why won’t Mac OS X install?

If macOS still won’t install properly, you might need to reinstall the whole operating system instead. You can do this using Recovery Mode on your Mac. Restart your Mac and hold Option + Cmd + R while it powers on. … Click Reinstall macOS to install the latest version of macOS.

What do I do if I can’t reinstall OS X?

Here is how to boot into Recovery Drive on an Intel Mac:

  1. Shut down your Mac. …
  2. Hold down the Command and R keys down and press the Power button.
  3. Keep holding Command and R until the Apple logo appears on the screen. …
  4. You should see a screen saying macOS Utilities (or if your Mac is older, OS X Utilities).

1 февр. 2021 г.

Why won’t My Mac Let me update OS?

Make sure there is enough space to download and install an update. If not, you may see error messages. To see if your computer has enough room to store the update, go to the Apple menu > About This Mac and click the Storage tap. … Make sure that you have an Internet connection to update your Mac.

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How do I wipe my Mac and reinstall OS X?

Erase and reinstall macOS

  1. Start up your computer in macOS Recovery: …
  2. In the Recovery app window, select Disk Utility, then click Continue.
  3. In Disk Utility, choose View > Show All Devices.
  4. Select your startup disk on the left, then click Erase.
  5. Click the Format pop-up menu (APFS should be selected), enter a name, then click Erase.

Why can’t Catalina be installed on Macintosh HD?

In most cases, macOS Catalina cannot be installed on Macintosh HD, because it doesn’t have enough disk space. If you install Catalina on top of your current operating system, the computer will keep all the files and still need free space for Catalina. … Backup your disk and run a clean install.

How do I reinstall OSX from USB?

Booting Your Mac From a USB Drive

Simply plug your created USB drive into an open USB port on your Mac. Power on the system, or restart it if it’s already on. Immediately press and hold the Option (Alt) key on your keyboard when it starts booting. You should now see an option to select your USB drive as a startup disk.

How do I reinstall OSX without disc?

Reinstall Your Mac’s OS Without an Installation Disc

  1. Turn your Mac on, while holding the CMD + R keys down.
  2. Select “Disk Utility” and click on Continue.
  3. Select the startup disk and go to the Erase Tab.
  4. Select the Mac OS Extended (Journaled), give a name to your disk and click on Erase.
  5. Disk Utility > Quit Disk Utility.
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21 апр. 2020 г.

How do I reinstall OSX without Internet?

Installing a fresh copy of macOS via Recovery Mode

  1. Restart your Mac while holding down the ‘Command+R’ buttons.
  2. Release these buttons as soon as you see the Apple logo. Your Mac should now boot into Recovery Mode.
  3. Select ‘Reinstall macOS,’ and then click ‘Continue. ‘
  4. If prompted, enter your Apple ID.

Can a Mac be too old to update?

You Can’t Run the Latest Version of macOS

Mac models from the past several years are capable of running it. This means if your computer won’t upgrade to the latest version of macOS, it’s becoming obsolete.

How do I update my Mac when it says no updates available?

Use Software Update

  1. Choose System Preferences from the Apple menu , then click Software Update to check for updates.
  2. If any updates are available, click the Update Now button to install them. …
  3. When Software Update says that your Mac is up to date, the installed version of macOS and all of its apps are also up to date.

12 нояб. 2020 г.

Can’t install OSX on this computer?

From the “MacOS could not be installed on your computer” screen: Press and hold “option” key and click restart. In the “Startup disk selection” screen, use the arrow keys to select your main hard drive (not the MacOS update) … Open and install the update.

How do you reset a Mac OS?

How to reset a MacBook Air or MacBook Pro

  1. Hold down the Command and R keys on the keyboard and turn on the Mac. …
  2. Select your language and continue.
  3. Choose Disk Utility and click continue.
  4. Choose your startup disk (named Macintosh HD by default) from the sidebar and click the Erase button.
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How do I restore my Mac to factory settings?

How to Factory Reset: MacBook

  1. Restart your computer: hold the power button > select Restart when it appears.
  2. While the computer restarts, hold down the ‘Command’ and ‘R’ keys.
  3. Once you see the Apple logo appear, release the ‘Command and R keys’
  4. When you see a Recovery Mode menu, select Disk Utility.

1 февр. 2021 г.

How do I force reinstall OSX?

Reinstall macOS

  1. Install the latest version of macOS compatible with your computer: Press and hold Option-Command-R.
  2. Reinstall your computer’s original version of macOS (including available updates): Press and hold Shift-Option-Command-R.
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