So let us see How to Upgrade Apple MacOS to Catalina 10.15.5 Release.How to Backup. In this video How to Update MacOS and Install macOS Catalina On Your Mac. Upgrade macOS Mojave 10.14 to Catalina 10.15. This window will show the installed version of macOS on your MacBook, along with configurations. Here you can see m acOS Mojave 10.14.6 is installed on this MacBook. That Click on Software Update button for checking the updates. MacOS Catalina was the newest operating system by Apple until macOS Big Sur succeeded it in 2020. If your Mac still runs Mojave or an even older macOS version, you'll be amazed by all the new features and improvements in Catalina. So here's how to upgrade to macOS Catalina. First, clear out the junk. Install Mac Os Mojave; New Mac Update. When I try to install the upgrade to Catalina, I get the message above for my boot drive. I am currently running 10.14.5 (Mojave) and the drive is formatted as Mac OS Extended (Journaled).

There is no macOS Catalina 10.15 available, Apple removes all previous full installers from the App Store

when a revised version is released.


The package you downloaded is not the upgrade installer app but an update for Catalina, you need

to be running a previous version of Catalina before that will install. Put it in the Trash, empty the Trash.


You need to download the full installer app from the link below,


Open Safari and click on the blue text,


Go to Check Compatibility to see if your mac qualifies for macOS Catalina.

If it does go to the Download OS section and click on macOS Catalina 10.15.

This will redirect you to the App Store Catalina download page it should say

Get or Download.

This will download the Install macOS Catalina.app directly to your Applications folder.

It is about 12.24GBs in size so will take a while, be patient.

Double-click on the installer app to install Catalina this will install a full working version

Update To Catalina Macos

of Catalina and the version will be the latest/ last ver 10.15.7.


Before upgrading make a full back up of your Mac.


Check that third party apps you use have updates available for the new OS.

Check that your printers/ scanners etc have updated drivers and software available for the new OS.


Connect your mac to your router via cable rather than rely on WiFi.

Do not use your mac while it is downloading

and do not use any other devices that share the same internet connection.


If the App Store says ‘Open’ then it is detecting a previous download of the install app

go to the Applications folder locate Install macOS Catalina.app.

Move it to the Trash, empty the Trash.

Restart, click on the link again, the App Store should say ‘Get' or 'Download'.


As you are considering upgrading to Catalina be warned it does not support 32bit apps.

Update To Catalina

Your Mac is probably running 32bit apps and these will need to be updated to 64bit apps,

some updates may be free, some may be paid. Use this app to discover which apps you have

Catalina

Update To Catalina Os

are 32bit, https://www.stclairsoft.com/Go64/ then contact the developers of the software to see

if they are providing 64bit updates or alternatives.

Update To Catalina Mac

Jul 29, 2021 10:44 AM