How To Update: Macos High Sierra 10.13.6 To 10.15

To update from macOS High Sierra 10.13.6 to macOS Catalina 10.15, you will need to download the installer directly from the Mac App Store, as it won't appear in your standard "Software Update" settings wikidot wiki 1. Check Compatibility

Before starting, ensure your Mac model is officially supported. Catalina only runs on Macs with Metal-capable graphics processors: : Early 2015 or newer MacBook Air/Pro : Mid 2012 or newer Mac mini/iMac : Late 2012 or newer : 2017 or newer : Late 2013 or newer Apple Support Note on 32-bit Apps : Catalina is the first macOS to drop all support for 32-bit applications

. Check your critical apps for compatibility using tools like before upgrading. Apple Discussions

how can I update mac os from High Sierra … - Apple Community

Upgrading from macOS High Sierra 10.13.6 to macOS Catalina 10.15 is a major jump that replaces outdated system structures with modern features like dedicated media apps and iPad screen sharing. Key Benefits of Upgrading

Modern Media Apps: Catalina replaces iTunes with three dedicated apps: Apple Music, Apple TV, and Apple Podcasts.

Sidecar: You can use a compatible iPad as a second display or high-precision input device for your Mac.

Improved Security: Includes Find My (which works even if the Mac is offline) and Activation Lock for Macs with the Apple T2 Security Chip.

Screen Time: Brings the iOS feature to Mac, allowing you to track app usage and set limits. Critical Requirements & Preparation

Before you start, note that Catalina does not support 32-bit applications. Apps like older versions of Microsoft Office or Adobe Photoshop will stop working. macOS - How to Upgrade - Apple (SI)

To update your Mac from macOS High Sierra 10.13.6 macOS Catalina 10.15 how to update macos high sierra 10.13.6 to 10.15

, you must first verify your hardware's compatibility and then manually download the installer via the App Store, as it won't appear in the standard "Software Update" window. Step 1: Check Compatibility

Not all Macs that run High Sierra can support Catalina. Ensure your model is on this list: : Early 2015 or newer MacBook Air : Mid 2012 or newer MacBook Pro : Mid 2012 or newer : Late 2012 or newer : Late 2012 or newer : 2017 or newer : Late 2013 or newer Apple Support Important Warning : macOS Catalina is the first version to drop support for 32-bit apps

. Check your critical apps for 64-bit compatibility before proceeding. Apple Support Community Step 2: Prepare Your Mac

how can I update mac os from High Sierra 10.13.6 version to 10.15?

Updating macOS High Sierra 10.13.6 to 10.15: A Step-by-Step Guide

Are you still running macOS High Sierra 10.13.6 on your Mac? If so, you're missing out on the latest features, security patches, and performance enhancements available in macOS 10.15, also known as Catalina. In this article, we'll walk you through the process of updating your Mac from macOS High Sierra 10.13.6 to 10.15.

Preparation is Key

Before you start the update process, make sure your Mac is ready for the transition. Here are some essential steps to take:

1. Backup your data: Use Time Machine or your preferred backup method to create a complete backup of your Mac. This will ensure that your files and settings are safe in case something goes wrong during the update process.
2. Check compatibility: Verify that your Mac is compatible with macOS 10.15. You can check the system requirements on Apple's website. Generally, macOS 10.15 supports Macs from 2012 and later, but some models may not be compatible.
3. Free up disk space: Make sure you have enough free disk space to accommodate the update. A minimum of 20 GB of free space is recommended.
4. Update your current OS: Ensure that you're running the latest version of macOS High Sierra (10.13.6). Go to System Preferences > Software Update to check for any available updates.

Update to macOS 10.15

There are two ways to update to macOS 10.15: using the Software Update mechanism or by downloading the installer from the Mac App Store. We'll cover both methods. To update from macOS High Sierra 10

Method 1: Using Software Update

1. Go to System Preferences > Software Update.
2. Click on Update Now to check for available updates.
3. If an update is available, click on Update Now to begin the download process.
4. Once the download is complete, click on Install Now to start the update process.
5. Follow the on-screen instructions to complete the installation.

Method 2: Downloading the Installer from the Mac App Store

1. Open the Mac App Store on your Mac.
2. Search for "macOS Catalina" in the search bar.
3. Click on the Get button next to the macOS Catalina icon.
4. Click on Download to begin downloading the installer.
5. Once the download is complete, the installer will launch automatically. Click on Continue to start the update process.
6. Follow the on-screen instructions to complete the installation.

Installation Process

The installation process may take some time, depending on your Mac's specifications and the speed of your internet connection. Here's what you can expect:

1. Preparation: Your Mac will prepare for the update by creating a bootable installer and verifying the integrity of the installation package.
2. Reboot: Your Mac will restart and boot into the macOS Recovery environment.
3. Installation: The installer will copy the necessary files and perform the installation.
4. Configuration: Your Mac will configure the new operating system and transfer your files and settings.

Post-Update Steps

Once the installation is complete, you'll be greeted with the macOS Catalina setup assistant. Here are some essential steps to take:

1. Set up your Mac: Follow the on-screen instructions to set up your Mac, including creating a new user account or transferring your existing account.
2. Update your apps: Check for updates to your installed apps, as some may not be compatible with macOS 10.15.
3. Configure your settings: Review your system settings, such as Security & Privacy, Network, and Notifications, to ensure they're configured to your liking.

Conclusion

Updating from macOS High Sierra 10.13.6 to 10.15 is a straightforward process that requires some preparation and patience. By following these steps, you'll be able to enjoy the latest features, security patches, and performance enhancements available in macOS 10.15. If you encounter any issues during the update process, don't hesitate to reach out to Apple Support or visit an Apple Store for assistance.

Upgrading from macOS High Sierra 10.13.6 to macOS Catalina 10.15 is a significant jump. This transition not only modernizes your system but also fundamentally changes how your Mac operates—most notably by ending support for 32-bit applications.

Below is a comprehensive guide to help you prepare for and complete this upgrade safely. 1. Check Hardware Compatibility Backup your data : Use Time Machine or

Before starting, ensure your Mac model officially supports Catalina. Because Catalina requires a Metal-capable GPU, some older machines that ran High Sierra cannot move forward to 10.15. Compatible Models: MacBook: Early 2015 or newer MacBook Air: Mid 2012 or newer MacBook Pro: Mid 2012 or newer Mac mini: Late 2012 or newer iMac: Late 2012 or newer iMac Pro: 2017 Mac Pro: Late 2013 or newer Minimum System Requirements: Memory: At least 4GB of RAM.

Storage: Approximately 15GB to 18.5GB of available disk space for the installation. 2. Critical Pre-Upgrade Steps

Do not skip these steps, as the upgrade to Catalina changes your drive format to APFS and removes 32-bit app support.

Backup Your Data: Use the built-in Time Machine tool to create a full system backup to an external drive. This is your safety net if the installation fails.

Check App Compatibility: Catalina will not run 32-bit apps. Use a tool like Go64 or check About This Mac > System Report > Legacy Software to see which apps will stop working.

Check Your Drive Health: Open Disk Utility (found in Applications > Utilities) and run First Aid on your startup disk to ensure there are no errors before the OS rewrite begins. 3. How to Update: Step-by-Step

On High Sierra 10.13.6, you will often not see the Catalina update in the standard "Software Update" window. You must typically find it in the Mac App Store. Upgrade to macOS Catalina. - Apple

4) Backup (do this before any upgrade)

• Create a full bootable backup using one of:
  • Time Machine (Apple menu → System Preferences → Time Machine → Back Up Now) — ensures you can restore files.
  • Bootable clone (recommended for faster rollback): use Carbon Copy Cloner or SuperDuper! to clone your startup disk to an external SSD/HDD.
• Verify backup integrity (mount/explore or restore a sample file).

Step 5: Post-Installation Steps & Common Fixes

After the final reboot, you’ll see the Catalina setup assistant.

Step 3: Select Your Startup Drive

You’ll be asked which disk to install Catalina on. Choose your main internal drive (likely named “Macintosh HD”).

Important: If you have a Fusion Drive (iMac, some Mac minis), the installer will handle it automatically. Do not attempt to split it.

A. Back Up Everything (Time Machine + Optional Clone)

• Time Machine: Connect an external drive (at least double your Mac’s storage). Go to System Preferences > Time Machine > Select Backup Disk > On. Let it complete a full backup.
• Bonus (Optional but recommended): Create a bootable clone using SuperDuper! or Carbon Copy Cloner. This allows you to revert instantly if Catalina has issues.

Step 5: Preparation (Crucial)

Before running the installer:

1. Time Machine Backup: Do not skip this. If the upgrade fails, High Sierra may not boot. You need an external drive.
2. Free Space: Catalina requires at least 20GB of free space, but realistically aim for 40GB.
3. Convert to APSS: High Sierra likely uses Mac OS Extended (Journaled). The installer will automatically convert your drive to APFS (Apple File System). This is irreversible and can take 30-60 minutes. Do not shut down during conversion.

Step 4: Enter Administrator Credentials

Type your admin username and password.