Update Macos High Sierra 10.13.6 To 10.15 __link__: How To

: Catalina does not support 32-bit apps . Many older programs (like older versions of Microsoft Office or Adobe CS6) will stop working.

Never attempt an operating system upgrade without a fresh backup. If the installation is interrupted by a power failure or a system crash, you risk losing your data. Connect an external hard drive to your Mac. Go to . Click Select Backup Disk and choose your external drive.

Since you are on High Sierra, the official method is via the : how to update macos high sierra 10.13.6 to 10.15

Double-check your specific model at everymac.com or Apple’s official support page. And remember – you can always download the Catalina installer from the App Store, even if Apple technically says your Mac is “vintage.”

Wait for the download to finish. It is a large file, so this may take anywhere from a few minutes to an hour depending on your internet speed. 3. Run the Installer : Catalina does not support 32-bit apps

Select your primary hard drive (usually labeled Macintosh HD ) as the destination disk.

You install Catalina. Stay on High Sierra or consider: If the installation is interrupted by a power

Here is the step-by-step guide to safely making the jump.

Open the Mac App Store and click Updates in the sidebar to download the 64-bit compatible versions of your third-party applications.