Ensure your main apps launch and run correctly.
Enter your Mac’s administrator username and password when prompted to allow the installation to begin. Step 5: What to Expect During Installation
How to Update macOS High Sierra 10.13.6 to 10.15 (Catalina) You can update your Mac from by downloading the official installer from the Mac App Store. However, because macOS Catalina introduces a fundamental shift in system architecture—dropping all support for older 32-bit applications—you must verify your hardware compatibility and audit your software before upgrading. Step 1: Check Hardware Compatibility
Apple provides a direct link to the Catalina installer, but it can be tricky to find via search.
Once the upgrade finishes, you will be greeted by the macOS Catalina welcome screen.
You must review your critical software before downloading the installer: Click the and select About This Mac . Click System Report... to launch the system profile tool.
sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume
To update your Mac from macOS High Sierra 10.13.6 macOS Catalina 10.15
If your Mac is older than the models listed above, Apple does not officially support the Catalina upgrade on your machine. Step 2: Check for 32-Bit Application Compatibility
Ensure you have at least 15 GB to 20 GB of available storage . Go to About This Mac > Storage to inspect your current volume.
After your Mac boots into macOS Catalina, there are a few final steps to take.
Make sure you are on the 10.13.6 with all security updates:
However, upgrading isn't just about new features; it's also about leaving some things behind. The most significant change in Catalina is the end of support for 32-bit applications.
However, this is not a “simple click update.” Because you are skipping two major OS versions (Mojave and Catalina), there are critical compatibility checks and preparation steps you must take before pressing the upgrade button.
Click and enter your Mac’s administrator password when prompted. 3. Complete the Installation Process Your Mac will restart to begin the actual installation.
Safeguard any data of your computer with professional software.
100%
Clean & Secure
Ensure your main apps launch and run correctly.
Enter your Mac’s administrator username and password when prompted to allow the installation to begin. Step 5: What to Expect During Installation
How to Update macOS High Sierra 10.13.6 to 10.15 (Catalina) You can update your Mac from by downloading the official installer from the Mac App Store. However, because macOS Catalina introduces a fundamental shift in system architecture—dropping all support for older 32-bit applications—you must verify your hardware compatibility and audit your software before upgrading. Step 1: Check Hardware Compatibility
Apple provides a direct link to the Catalina installer, but it can be tricky to find via search. how to update macos high sierra 10.13.6 to 10.15
Once the upgrade finishes, you will be greeted by the macOS Catalina welcome screen.
You must review your critical software before downloading the installer: Click the and select About This Mac . Click System Report... to launch the system profile tool.
sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume Ensure your main apps launch and run correctly
To update your Mac from macOS High Sierra 10.13.6 macOS Catalina 10.15
If your Mac is older than the models listed above, Apple does not officially support the Catalina upgrade on your machine. Step 2: Check for 32-Bit Application Compatibility
Ensure you have at least 15 GB to 20 GB of available storage . Go to About This Mac > Storage to inspect your current volume. You must review your critical software before downloading
After your Mac boots into macOS Catalina, there are a few final steps to take.
Make sure you are on the 10.13.6 with all security updates:
However, upgrading isn't just about new features; it's also about leaving some things behind. The most significant change in Catalina is the end of support for 32-bit applications.
However, this is not a “simple click update.” Because you are skipping two major OS versions (Mojave and Catalina), there are critical compatibility checks and preparation steps you must take before pressing the upgrade button.
Click and enter your Mac’s administrator password when prompted. 3. Complete the Installation Process Your Mac will restart to begin the actual installation.
AOMEI Backupper
