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My iMac froze whiIe loading update

How do I get it to quite and restart.?....

iMac 21.5", macOS 10.13

Posted on May 23, 2020 6:29 PM

Reply
11 replies

May 26, 2020 2:05 PM in response to gpd29

1. Start up from macOS Recovery

To start up from macOS Recovery, turn on your Mac and immediately press and hold one of the following combinations on your keyboard. Command-R is generally recommended, especially if you never installed macOS Sierra 10.12.4 or later… https://support.apple.com/en-us/HT204904#notupdated

Command (⌘)-R

Install the latest macOS that was installed on your Mac.


Option-⌘-R

Upgrade to the latest macOS compatible with your Mac.


Shift-Option-⌘-R

Install the macOS that came with your Mac, or the closest version still available.


2. Decide whether to erase (format) your disk

If you need to erase your disk before installing macOS, select Disk Utility from the Utilities window, then click Continue. You probably don't need to erase, unless you're selling or giving away your Mac or have an issue that requires you to erase. Learn more about when and how to erase.

3. Install macOS

After starting up from macOS Recovery, follow these steps to install macOS:

  1. Choose Reinstall macOS (or Reinstall OS X) from the Utilities window.
  2. Click Continue, then follow the onscreen instructions to choose your disk and begin installation.
  3. If the installer asks to unlock your disk, enter the password you use to log in to your Mac. If it doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk


  1. Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.

If your Mac restarts to a setup assistant, but you're selling or giving it away, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.



If you never installed macOS Sierra 10.12.4

If macOS Sierra 10.12.4 or later was never installed on your Mac, macOS Recovery works differently:

  • Command-R is still the recommended way to start up from macOS Recovery. This combination makes sure that the installation isn't associated with your Apple ID, which is important if you're selling or giving away your Mac.
  • Option-Command-R installs the macOS that came with your Mac, or the closest version still available.
  • Shift-Option-Command-R isn't available.

https://support.apple.com/en-us/HT204904 

May 26, 2020 4:17 PM in response to Old Toad

I’m afraid some are missing my problem....Here it is again: I was attempting to download an app that Apple sent out as an upgrade. While in the down loading the hard drive seated up. All I can get now is the Apple logo and the bar under it. It will load about 1/2 and then shuts off. Every time I restart using the power button, the unit does the same thing. I can go no where else.

May 26, 2020 4:35 PM in response to gpd29

While holding down the Command + R keys press the power button and see if you can get into the Recovery mode. You might need to have a wired keyboard to do that. If you have a curren B/T keyboard from Apple you can use the charging cable to connect it as a wired keyboard.


Once in the Recover volume repair the disk with Disk Utility and reinstall the system.


My iMac froze whiIe loading update

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