Scroll down the left sidebar to the section and click Applications .

Total installation time: (depending on drive speed: SSD = ~45 min, HDD = 1.5+ hours).

Note: If your Mac is older than the models listed above, it cannot officially run macOS Catalina. You will need to remain on High Sierra or consider upgrading your hardware. Step 2: Check for 32-Bit App Compatibility

[High Sierra 10.13.6] ──> [Time Machine Backup] ──> [Download Catalina Installer via Safari] ──> [Run Setup] 1. Create a Time Machine Backup

"Come on," he urged the machine.

Follow the on-screen instructions to begin the installation.

This usually indicates a corrupted download or an inaccurate system clock. Go to System Preferences > Date & Time and ensure your Mac is set to set date and time automatically before restarting the download.

The screen will go black, display the Apple logo, and show progress bars multiple times. The computer may restart on its own several times. This process typically takes between 30 to 45 minutes to complete. Phase 4: Post-Installation Setup

will open and begin downloading the file named Install macOS Catalina . Running the Installer