How to update macOS

Complete guide with multiple methods and troubleshooting.

7-10 min read
Expert Verified
Last Updated: August 2025

Quick Answer

Updating macOS is essential for maintaining system security, performance, and access to new features. Users can update their macOS through the System Preferences app or by downloading the latest version from the Mac App Store.

Easy⏱ 7-10 min read

Prerequisites & Requirements

Before updating macOS, ensure the following requirements are met.
  • •macOS version: Ensure you are running macOS Sierra (10.12) or later to update to the latest version.
  • •Required permissions: You must have administrator access to install updates.
  • •Necessary tools: A stable internet connection and sufficient disk space (at least 15-20 GB free).
  • •Important data: Backup your data using Time Machine or another backup solution to prevent data loss.

Method 1: Updating via System Preferences

This method is the most straightforward and is recommended for users who prefer a graphical interface.
  • •Step 1: Click on the Apple menu () in the top-left corner of your screen.
  • •Step 2: Select 'System Preferences' from the dropdown menu.
  • •Step 3: Click on 'Software Update'. The system will check for available updates.
  • •Step 4: If updates are available, click 'Update Now' to install them. Follow the on-screen instructions to complete the installation.
  • •Step 5: After installation, verify the update by going back to 'Software Update' to ensure no further updates are available.

For macOS Monterey (12) and later

In macOS Monterey and later, you may also see an option for 'Upgrade Now' if a major new version is available.
  • •Step 1: Follow the same steps as above.
  • •Step 2: If 'Upgrade Now' is visible, click it to download the new macOS version.
  • •Step 3: Follow the prompts to install the upgrade.

For macOS Big Sur (11) and earlier

The update process is similar, but the interface may differ slightly.
  • •Step 1: Follow the same steps as above.
  • •Step 2: Look for 'Update Now' instead of 'Upgrade Now' for minor updates.

Method 2: Updating via Terminal

This method is useful for advanced users who prefer command-line operations.
  • •Step 1: Open Terminal from Applications > Utilities.
  • •Step 2: Type the command 'softwareupdate -l' to list available updates.
  • •Step 3: To install all available updates, type 'sudo softwareupdate -i -a' and press Enter. You will need to enter your administrator password.
  • •Step 4: Wait for the process to complete. You can verify the updates by running 'softwareupdate -l' again.

Troubleshooting Common Issues

If you encounter issues while updating, consider the following solutions.
  • •Error: 'The update could not be verified' - Solution: Ensure you have a stable internet connection and try again.
  • •Issue: 'Not enough disk space' - Fix: Free up space by deleting unnecessary files or moving them to an external drive.
  • •Problem: 'Update failed' - Workaround: Restart your Mac and try the update again. If it continues to fail, consider using Safe Mode (hold Shift during startup) to perform the update.

Advanced Tips & Shortcuts

Here are some tips to enhance your update experience.
  • •Keyboard shortcut: Command + Space - Opens Spotlight Search for quick access to System Preferences.
  • •Command line: 'sudo softwareupdate -i <update_name>' - Install a specific update by name.
  • •Hidden feature: Automatic updates - Enable automatic updates in System Preferences > Software Update > 'Automatically keep my Mac up to date' to avoid manual updates.

Common Mistakes to Avoid

Avoid these common pitfalls:

Expert Tips

Regularly updating your macOS not only enhances security but also improves performance and access to new features.