How To Update Macos High Sierra 10.13.6 To 10.15 -

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 . Upgrade to macOS Catalina. - Apple

Below is a comprehensive guide to help you prepare for and complete this upgrade safely. 1. Check Hardware Compatibility how to update macos high sierra 10.13.6 to 10.15

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. On High Sierra 10

Approximately 15GB to 18.5GB of available disk space for the installation. 2. Critical Pre-Upgrade Steps On High Sierra 10.13.6