Run Disk Utility to repair any permissions if you experience slowness.
– you risk malware.
Open the Safari web browser and access the Apple Support macOS Download Page . Locate and click the link, which will prompt your machine to automatically redirect and open the hidden macOS Catalina App Store Page . 2. Fetch the Installer Files
To update macOS High Sierra 10.13.6 to macOS Catalina 10.15, you must first verify that your hardware is compatible and then download the installer from the Mac App Store. Because 10.13.6 does not always show Catalina in the standard "Software Update" menu, manual download is often required. 1. Verify System Compatibility how to update macos high sierra 10.13.6 to 10.15
October 2023 (updated for historical context) Prepared For: Users running macOS High Sierra 10.13.6 Subject: Feasibility, prerequisites, and step-by-step procedure for upgrading to macOS 10.15 (Catalina)
Identify any essential apps labeled under the 64-bit column.
You’ll be asked which disk to install Catalina on. Choose your (likely named “Macintosh HD”). Run Disk Utility to repair any permissions if
Your Mac must meet specific hardware requirements to run Catalina. Generally, models from are supported: 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 Technical Requirements :
Use a wired Ethernet connection if possible, or a stable Wi-Fi network. 3. How to Download macOS Catalina
Open the and click the Updates tab to install any newly available security updates or compatible app revisions for your fresh installation of macOS 10.15. Locate and click the link, which will prompt
Once the download finishes, the installer should open automatically.
Before jumping in, recognize the crucial change: . If you rely on legacy software like older versions of Microsoft Office or Adobe Creative Suite, they will stop working after this update.