My Mac Wont Restart After Software Update

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  1. My Mac Won T Restart After Software Update
  2. My Mac Wont Restart After Software Update Windows 10
  3. My Mac Won't Restart After Software Update
  4. Mac Won't Restart After Update
  5. Mac Won't Install Software Update

About unexpected restarts

Rarely, your Mac might experience a software or hardware issue that requires it to restart. When it starts up again, you might see a message that your computer was restarted because of a problem.

Open Terminal in /Applications/Utilities or Restart your mac in Recovery Mode and from the Utilities menu in the menu bar select Utilities Terminal to open a terminal Enter “systemprofiler SPExtensionsDataType /Desktop/kextList.txt” without the quotes. Jul 08, 2019  With macOS, get the recovery program opening fully (correctly) “Command+R” needs to be held down during the full length of the booting process. Choose the language if needed On the MacOS Utilities screen, open the Utilities menu from the top of the screen Choose Terminal and launch the.

Unexpected restarts are usually caused by software installed on your Mac, or by devices connected to your Mac. If the issue causes your Mac to restart every time it attempts to start up, your Mac might eventually shut down. Use the steps below to check the software and hardware on your Mac.

Check your software

If the issue is caused by software on your Mac, one of these steps might help:

  • Install all available software updates.
  • If your Mac suspects that a particular app caused the restart, it might ask whether you would like to move the app to the Trash. Click Move to Trash, then contact the software developer to see if a software update is available.
  • Use safe mode to try to isolate the cause of the issue.
  • Reinstall macOS. If the issue continues after reinstalling macOS, check your hardware.

Check your hardware

Learn how to check your connected devices and other hardware.

Check peripheral devices first

If you don't have any devices attached to your Mac, skip to the next section.

  1. Shut down your Mac.
  2. Disconnect all peripheral devices, such as hard drives or printers. If you have a desktop Mac, make sure that only a display, keyboard, and mouse or trackpad are connected.
  3. Turn on your Mac.
  4. Use your Mac for the amount of time that it would usually take for an unexpected restart to occur.
  5. If an unexpected restart occurs, follow the steps to check the internal RAM and third-party hardware.
  6. If an unexpected restart doesn't occur, turn off the Mac and connect one peripheral device at a time until an unexpected restart occurs.

Check RAM and third-party hardware

Certain models of Mac computers have removable memory (RAM). If you’ve recently installed memory or a hard disk (or SSD), make sure that it’s compatible and installed correctly. If possible, remove it and test with the original memory or disk.

Learn more

  • If you continue to experience unexpected restarts, contact Apple Support.
  • If your Mac is frequently restarting unexpectedly, it's important to determine the exact steps that lead up to the issue. The next time that your Mac restarts unexpectedly, record the date and time it occurs. These questions might help you diagnose the problem:
    • Was the computer starting up, shutting down, or performing a particular task when the unexpected restart happened?
    • Is the computer restart random, or does it happen every time you do a certain task?
    • Does the restart happen when a specific external device is connected to your Mac or to a specific port?
  • Learn what to do if your Mac doesn't turn on or start up.
  • Learn about the screens you see when your Mac starts up.

My Mac Won T Restart After Software Update

Circle with a line through it

Learn what to do if your Mac starts up to a circle with a line through it (prohibitory symbol).

Question mark

Learn what to do if your Mac starts up to a question mark.

Blank (empty) screen

My Mac Wont Restart After Software Update Windows 10

Learn what to do if your Mac starts up to a blank screen.

Apple logo

Learn what to do if your Mac starts up to an Apple logo or progress bar.

Globe with alert symbol

Mac

A globe with an exclamation point means that your Mac tried to start up from macOS Recovery over the Internet, but couldn't. Learn what to do if your Mac can't start up from macOS Recovery.

Lock icon

If your Mac is using a firmware password, the lock icon appears when you try to start up from another disk or volume, such as an external drive or macOS Recovery. Enter the firmware password to continue.

My mac won

My Mac Won't Restart After Software Update

System lock PIN code

Your Mac asks for a PIN code when it has been remotely locked using Find My. Enter the four-digit or six-digit passcode to continue.

Login window

Mac Won't Restart After Update

At the login window, enter your user account password to log in to your Mac. If FileVault is turned on, this also unlocks your disk. You might see a default desktop picture in the background, which might change to your chosen desktop picture when you select your account.

Thunderbolt, USB, or FireWire symbol

A large Thunderbolt , USB , or FireWire symbol against a dark background means that your Mac is in target disk mode.

Mac Won't Install Software Update

Learn more

  • Learn what to do if your Mac displays a message that it restarted because of a problem.
  • Learn what do do if your Mac continuously restarts.
  • When starting up from Windows using Boot Camp, your Mac doesn't show an Apple logo or the other macOS screens in this article.