Issue with macOS Sequoia 15.3 update

Apple recently released an update for macOS Sequoia 15.3, and ITS is receiving reports that the update does not fully install if a user has any peripheral devices connected to their Mac when they attempt the update. (e.g. keyboard, mouse, microphone, webcam, monitor, external drive etc.)  

What do you need to do? 

  1. Before you begin the macOS Sequoia 15.3 update, unplug all peripherals.
  2. Install the update.
  3. Log in.
  4. Reconnect your perpherials. 

  

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